Home / 12,482.20-17,225.69-6,817.17

Finding the Fourth Proportional to 12,482.20, 17,225.69 and 6,817.17

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Solution

The fourth proportional to 12,482.20, 17,225.69 and 6,817.17 is: 9,407.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.20 : 17,225.69 = 6,817.17 : x
  2. Step 2: Convert to fraction form
    12,482.20/17,225.69 = 6,817.17/x
  3. Step 3: Cross multiply
    12,482.20x = 17,225.69 × 6,817.17
  4. Step 4: Simplify right side
    12,482.20x = 117,430,457.10
  5. Step 5: Solve for x
    x = 117,430,457.10/12,482.20
  6. Step 6: Final answer
    x = 9,407.83

Related Problems

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Half scale
Find fourth proportional to 24,964.40, 34,451.38 and 13,634.34
Double scale
Find fourth proportional to 12,483.20, 17,227.07 and 6,818.17
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.