Home / 15,278.13-22,913.49-6,388.65

Finding the Fourth Proportional to 15,278.13, 22,913.49 and 6,388.65

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Solution

The fourth proportional to 15,278.13, 22,913.49 and 6,388.65 is: 9,581.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,278.13 : 22,913.49 = 6,388.65 : x
  2. Step 2: Convert to fraction form
    15,278.13/22,913.49 = 6,388.65/x
  3. Step 3: Cross multiply
    15,278.13x = 22,913.49 × 6,388.65
  4. Step 4: Simplify right side
    15,278.13x = 146,386,267.89
  5. Step 5: Solve for x
    x = 146,386,267.89/15,278.13
  6. Step 6: Final answer
    x = 9,581.43

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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.