Home / 15,436.08-21,292.20-9,144

Finding the Fourth Proportional to 15,436.08, 21,292.20 and 9,144

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Solution

The fourth proportional to 15,436.08, 21,292.20 and 9,144 is: 12,613.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,436.08 : 21,292.20 = 9,144 : x
  2. Step 2: Convert to fraction form
    15,436.08/21,292.20 = 9,144/x
  3. Step 3: Cross multiply
    15,436.08x = 21,292.20 × 9,144
  4. Step 4: Simplify right side
    15,436.08x = 194,695,876.80
  5. Step 5: Solve for x
    x = 194,695,876.80/15,436.08
  6. Step 6: Final answer
    x = 12,613.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.