Home / 13,624.20-20,428.10-8,883.88

Finding the Fourth Proportional to 13,624.20, 20,428.10 and 8,883.88

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Solution

The fourth proportional to 13,624.20, 20,428.10 and 8,883.88 is: 13,320.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,624.20 : 20,428.10 = 8,883.88 : x
  2. Step 2: Convert to fraction form
    13,624.20/20,428.10 = 8,883.88/x
  3. Step 3: Cross multiply
    13,624.20x = 20,428.10 × 8,883.88
  4. Step 4: Simplify right side
    13,624.20x = 181,480,726.85
  5. Step 5: Solve for x
    x = 181,480,726.85/13,624.20
  6. Step 6: Final answer
    x = 13,320.47

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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.