Home / 10,257.39-14,147.15-7,425.18

Finding the Fourth Proportional to 10,257.39, 14,147.15 and 7,425.18

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Solution

The fourth proportional to 10,257.39, 14,147.15 and 7,425.18 is: 10,240.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,257.39 : 14,147.15 = 7,425.18 : x
  2. Step 2: Convert to fraction form
    10,257.39/14,147.15 = 7,425.18/x
  3. Step 3: Cross multiply
    10,257.39x = 14,147.15 × 7,425.18
  4. Step 4: Simplify right side
    10,257.39x = 105,045,098.11
  5. Step 5: Solve for x
    x = 105,045,098.11/10,257.39
  6. Step 6: Final answer
    x = 10,240.92

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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.