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Finding the Fourth Proportional to 10,678.93, 16,008.11 and 7,169.90

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Solution

The fourth proportional to 10,678.93, 16,008.11 and 7,169.90 is: 10,747.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,678.93 : 16,008.11 = 7,169.90 : x
  2. Step 2: Convert to fraction form
    10,678.93/16,008.11 = 7,169.90/x
  3. Step 3: Cross multiply
    10,678.93x = 16,008.11 × 7,169.90
  4. Step 4: Simplify right side
    10,678.93x = 114,776,432.00
  5. Step 5: Solve for x
    x = 114,776,432.00/10,678.93
  6. Step 6: Final answer
    x = 10,747.94

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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.