Home / 15,404.52-21,263.68-9,116.88

Finding the Fourth Proportional to 15,404.52, 21,263.68 and 9,116.88

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Solution

The fourth proportional to 15,404.52, 21,263.68 and 9,116.88 is: 12,584.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,404.52 : 21,263.68 = 9,116.88 : x
  2. Step 2: Convert to fraction form
    15,404.52/21,263.68 = 9,116.88/x
  3. Step 3: Cross multiply
    15,404.52x = 21,263.68 × 9,116.88
  4. Step 4: Simplify right side
    15,404.52x = 193,858,418.92
  5. Step 5: Solve for x
    x = 193,858,418.92/15,404.52
  6. Step 6: Final answer
    x = 12,584.52

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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.