Home / 15,679.52-21,633.70-9,387.44

Finding the Fourth Proportional to 15,679.52, 21,633.70 and 9,387.44

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Solution

The fourth proportional to 15,679.52, 21,633.70 and 9,387.44 is: 12,952.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,679.52 : 21,633.70 = 9,387.44 : x
  2. Step 2: Convert to fraction form
    15,679.52/21,633.70 = 9,387.44/x
  3. Step 3: Cross multiply
    15,679.52x = 21,633.70 × 9,387.44
  4. Step 4: Simplify right side
    15,679.52x = 203,085,060.73
  5. Step 5: Solve for x
    x = 203,085,060.73/15,679.52
  6. Step 6: Final answer
    x = 12,952.25

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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.