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Finding the Fourth Proportional to 10,778.70, 16,168.05 and 10,001.10

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Solution

The fourth proportional to 10,778.70, 16,168.05 and 10,001.10 is: 15,001.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778.70 : 16,168.05 = 10,001.10 : x
  2. Step 2: Convert to fraction form
    10,778.70/16,168.05 = 10,001.10/x
  3. Step 3: Cross multiply
    10,778.70x = 16,168.05 × 10,001.10
  4. Step 4: Simplify right side
    10,778.70x = 161,698,284.86
  5. Step 5: Solve for x
    x = 161,698,284.86/10,778.70
  6. Step 6: Final answer
    x = 15,001.65

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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.