Home / 13,624.74-20,434.68-3,761.55

Finding the Fourth Proportional to 13,624.74, 20,434.68 and 3,761.55

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Solution

The fourth proportional to 13,624.74, 20,434.68 and 3,761.55 is: 5,641.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,624.74 : 20,434.68 = 3,761.55 : x
  2. Step 2: Convert to fraction form
    13,624.74/20,434.68 = 3,761.55/x
  3. Step 3: Cross multiply
    13,624.74x = 20,434.68 × 3,761.55
  4. Step 4: Simplify right side
    13,624.74x = 76,866,070.55
  5. Step 5: Solve for x
    x = 76,866,070.55/13,624.74
  6. Step 6: Final answer
    x = 5,641.65

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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.