Home / 10,870.43-15,001.55-6,154.61

Finding the Fourth Proportional to 10,870.43, 15,001.55 and 6,154.61

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Solution

The fourth proportional to 10,870.43, 15,001.55 and 6,154.61 is: 8,493.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,870.43 : 15,001.55 = 6,154.61 : x
  2. Step 2: Convert to fraction form
    10,870.43/15,001.55 = 6,154.61/x
  3. Step 3: Cross multiply
    10,870.43x = 15,001.55 × 6,154.61
  4. Step 4: Simplify right side
    10,870.43x = 92,328,689.65
  5. Step 5: Solve for x
    x = 92,328,689.65/10,870.43
  6. Step 6: Final answer
    x = 8,493.56

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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.