Home / 11,500.76-17,167.22-9,867.80

Finding the Fourth Proportional to 11,500.76, 17,167.22 and 9,867.80

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Solution

The fourth proportional to 11,500.76, 17,167.22 and 9,867.80 is: 14,729.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,500.76 : 17,167.22 = 9,867.80 : x
  2. Step 2: Convert to fraction form
    11,500.76/17,167.22 = 9,867.80/x
  3. Step 3: Cross multiply
    11,500.76x = 17,167.22 × 9,867.80
  4. Step 4: Simplify right side
    11,500.76x = 169,402,687.10
  5. Step 5: Solve for x
    x = 169,402,687.10/11,500.76
  6. Step 6: Final answer
    x = 14,729.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.