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Finding the Fourth Proportional to 18,107.61, 24,987.12 and 10,148.76

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Solution

The fourth proportional to 18,107.61, 24,987.12 and 10,148.76 is: 14,004.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,107.61 : 24,987.12 = 10,148.76 : x
  2. Step 2: Convert to fraction form
    18,107.61/24,987.12 = 10,148.76/x
  3. Step 3: Cross multiply
    18,107.61x = 24,987.12 × 10,148.76
  4. Step 4: Simplify right side
    18,107.61x = 253,588,283.97
  5. Step 5: Solve for x
    x = 253,588,283.97/18,107.61
  6. Step 6: Final answer
    x = 14,004.51

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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.