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Finding the Fourth Proportional to 10,752.70, 16,129.05 and 9,975.10

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Solution

The fourth proportional to 10,752.70, 16,129.05 and 9,975.10 is: 14,962.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,752.70 : 16,129.05 = 9,975.10 : x
  2. Step 2: Convert to fraction form
    10,752.70/16,129.05 = 9,975.10/x
  3. Step 3: Cross multiply
    10,752.70x = 16,129.05 × 9,975.10
  4. Step 4: Simplify right side
    10,752.70x = 160,888,886.66
  5. Step 5: Solve for x
    x = 160,888,886.66/10,752.70
  6. Step 6: Final answer
    x = 14,962.65

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.