Home / 18,966.32-28,450.12-5,817.52

Finding the Fourth Proportional to 18,966.32, 28,450.12 and 5,817.52

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Solution

The fourth proportional to 18,966.32, 28,450.12 and 5,817.52 is: 8,726.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.32 : 28,450.12 = 5,817.52 : x
  2. Step 2: Convert to fraction form
    18,966.32/28,450.12 = 5,817.52/x
  3. Step 3: Cross multiply
    18,966.32x = 28,450.12 × 5,817.52
  4. Step 4: Simplify right side
    18,966.32x = 165,509,142.10
  5. Step 5: Solve for x
    x = 165,509,142.10/18,966.32
  6. Step 6: Final answer
    x = 8,726.48

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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.