Home / 10,711.20-14,781.61-6,171.37

Finding the Fourth Proportional to 10,711.20, 14,781.61 and 6,171.37

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Solution

The fourth proportional to 10,711.20, 14,781.61 and 6,171.37 is: 8,516.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,711.20 : 14,781.61 = 6,171.37 : x
  2. Step 2: Convert to fraction form
    10,711.20/14,781.61 = 6,171.37/x
  3. Step 3: Cross multiply
    10,711.20x = 14,781.61 × 6,171.37
  4. Step 4: Simplify right side
    10,711.20x = 91,222,853.03
  5. Step 5: Solve for x
    x = 91,222,853.03/10,711.20
  6. Step 6: Final answer
    x = 8,516.58

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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.