Home / 18,772.29-28,162.17-8,384.04

Finding the Fourth Proportional to 18,772.29, 28,162.17 and 8,384.04

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Solution

The fourth proportional to 18,772.29, 28,162.17 and 8,384.04 is: 12,577.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,772.29 : 28,162.17 = 8,384.04 : x
  2. Step 2: Convert to fraction form
    18,772.29/28,162.17 = 8,384.04/x
  3. Step 3: Cross multiply
    18,772.29x = 28,162.17 × 8,384.04
  4. Step 4: Simplify right side
    18,772.29x = 236,112,759.77
  5. Step 5: Solve for x
    x = 236,112,759.77/18,772.29
  6. Step 6: Final answer
    x = 12,577.73

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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.