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Finding the Fourth Proportional to 8,332.86, 12,499.29 and 2,489.28

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Solution

The fourth proportional to 8,332.86, 12,499.29 and 2,489.28 is: 3,733.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,332.86 : 12,499.29 = 2,489.28 : x
  2. Step 2: Convert to fraction form
    8,332.86/12,499.29 = 2,489.28/x
  3. Step 3: Cross multiply
    8,332.86x = 12,499.29 × 2,489.28
  4. Step 4: Simplify right side
    8,332.86x = 31,114,232.61
  5. Step 5: Solve for x
    x = 31,114,232.61/8,332.86
  6. Step 6: Final answer
    x = 3,733.92

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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.