Home / 15,612.27-21,543.45-8,897.73

Finding the Fourth Proportional to 15,612.27, 21,543.45 and 8,897.73

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Solution

The fourth proportional to 15,612.27, 21,543.45 and 8,897.73 is: 12,278.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,612.27 : 21,543.45 = 8,897.73 : x
  2. Step 2: Convert to fraction form
    15,612.27/21,543.45 = 8,897.73/x
  3. Step 3: Cross multiply
    15,612.27x = 21,543.45 × 8,897.73
  4. Step 4: Simplify right side
    15,612.27x = 191,687,801.37
  5. Step 5: Solve for x
    x = 191,687,801.37/15,612.27
  6. Step 6: Final answer
    x = 12,278.02

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1.5x scale

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.