Home / 15,120.45-22,689.99-9,566.15

Finding the Fourth Proportional to 15,120.45, 22,689.99 and 9,566.15

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Solution

The fourth proportional to 15,120.45, 22,689.99 and 9,566.15 is: 14,355.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,120.45 : 22,689.99 = 9,566.15 : x
  2. Step 2: Convert to fraction form
    15,120.45/22,689.99 = 9,566.15/x
  3. Step 3: Cross multiply
    15,120.45x = 22,689.99 × 9,566.15
  4. Step 4: Simplify right side
    15,120.45x = 217,055,734.39
  5. Step 5: Solve for x
    x = 217,055,734.39/15,120.45
  6. Step 6: Final answer
    x = 14,355.11

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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.