Home / 12,482.42-17,225.77-6,817.21

Finding the Fourth Proportional to 12,482.42, 17,225.77 and 6,817.21

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Solution

The fourth proportional to 12,482.42, 17,225.77 and 6,817.21 is: 9,407.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.42 : 17,225.77 = 6,817.21 : x
  2. Step 2: Convert to fraction form
    12,482.42/17,225.77 = 6,817.21/x
  3. Step 3: Cross multiply
    12,482.42x = 17,225.77 × 6,817.21
  4. Step 4: Simplify right side
    12,482.42x = 117,431,631.39
  5. Step 5: Solve for x
    x = 117,431,631.39/12,482.42
  6. Step 6: Final answer
    x = 9,407.77

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Half scale
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Double scale
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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.