Home / 19,617.38-29,409.52-8,515.70

Finding the Fourth Proportional to 19,617.38, 29,409.52 and 8,515.70

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Solution

The fourth proportional to 19,617.38, 29,409.52 and 8,515.70 is: 12,766.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,617.38 : 29,409.52 = 8,515.70 : x
  2. Step 2: Convert to fraction form
    19,617.38/29,409.52 = 8,515.70/x
  3. Step 3: Cross multiply
    19,617.38x = 29,409.52 × 8,515.70
  4. Step 4: Simplify right side
    19,617.38x = 250,442,649.46
  5. Step 5: Solve for x
    x = 250,442,649.46/19,617.38
  6. Step 6: Final answer
    x = 12,766.37

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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.