Home / 15,943.42-22,001.34-8,869.69

Finding the Fourth Proportional to 15,943.42, 22,001.34 and 8,869.69

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Solution

The fourth proportional to 15,943.42, 22,001.34 and 8,869.69 is: 12,239.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,943.42 : 22,001.34 = 8,869.69 : x
  2. Step 2: Convert to fraction form
    15,943.42/22,001.34 = 8,869.69/x
  3. Step 3: Cross multiply
    15,943.42x = 22,001.34 × 8,869.69
  4. Step 4: Simplify right side
    15,943.42x = 195,145,065.38
  5. Step 5: Solve for x
    x = 195,145,065.38/15,943.42
  6. Step 6: Final answer
    x = 12,239.85

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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.