Home / 16,511.52-22,780.52-9,340.75

Finding the Fourth Proportional to 16,511.52, 22,780.52 and 9,340.75

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Solution

The fourth proportional to 16,511.52, 22,780.52 and 9,340.75 is: 12,887.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,511.52 : 22,780.52 = 9,340.75 : x
  2. Step 2: Convert to fraction form
    16,511.52/22,780.52 = 9,340.75/x
  3. Step 3: Cross multiply
    16,511.52x = 22,780.52 × 9,340.75
  4. Step 4: Simplify right side
    16,511.52x = 212,786,981.58
  5. Step 5: Solve for x
    x = 212,786,981.58/16,511.52
  6. Step 6: Final answer
    x = 12,887.18

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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.