Home / 8,677.28-13,008.09-3,126.71

Finding the Fourth Proportional to 8,677.28, 13,008.09 and 3,126.71

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Solution

The fourth proportional to 8,677.28, 13,008.09 and 3,126.71 is: 4,687.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,677.28 : 13,008.09 = 3,126.71 : x
  2. Step 2: Convert to fraction form
    8,677.28/13,008.09 = 3,126.71/x
  3. Step 3: Cross multiply
    8,677.28x = 13,008.09 × 3,126.71
  4. Step 4: Simplify right side
    8,677.28x = 40,672,525.08
  5. Step 5: Solve for x
    x = 40,672,525.08/8,677.28
  6. Step 6: Final answer
    x = 4,687.24

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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.