Home / 15,747.34-21,730.92-9,036.88

Finding the Fourth Proportional to 15,747.34, 21,730.92 and 9,036.88

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Solution

The fourth proportional to 15,747.34, 21,730.92 and 9,036.88 is: 12,470.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,747.34 : 21,730.92 = 9,036.88 : x
  2. Step 2: Convert to fraction form
    15,747.34/21,730.92 = 9,036.88/x
  3. Step 3: Cross multiply
    15,747.34x = 21,730.92 × 9,036.88
  4. Step 4: Simplify right side
    15,747.34x = 196,379,716.33
  5. Step 5: Solve for x
    x = 196,379,716.33/15,747.34
  6. Step 6: Final answer
    x = 12,470.66

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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.