Home / 14,059.20-19,401.10-7,685.68

Finding the Fourth Proportional to 14,059.20, 19,401.10 and 7,685.68

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Solution

The fourth proportional to 14,059.20, 19,401.10 and 7,685.68 is: 10,605.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,059.20 : 19,401.10 = 7,685.68 : x
  2. Step 2: Convert to fraction form
    14,059.20/19,401.10 = 7,685.68/x
  3. Step 3: Cross multiply
    14,059.20x = 19,401.10 × 7,685.68
  4. Step 4: Simplify right side
    14,059.20x = 149,110,646.25
  5. Step 5: Solve for x
    x = 149,110,646.25/14,059.20
  6. Step 6: Final answer
    x = 10,605.91

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Half scale
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Double scale
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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.