Home / 15,265.30-21,065.49-8,550.82

Finding the Fourth Proportional to 15,265.30, 21,065.49 and 8,550.82

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Solution

The fourth proportional to 15,265.30, 21,065.49 and 8,550.82 is: 11,799.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,265.30 : 21,065.49 = 8,550.82 : x
  2. Step 2: Convert to fraction form
    15,265.30/21,065.49 = 8,550.82/x
  3. Step 3: Cross multiply
    15,265.30x = 21,065.49 × 8,550.82
  4. Step 4: Simplify right side
    15,265.30x = 180,127,213.20
  5. Step 5: Solve for x
    x = 180,127,213.20/15,265.30
  6. Step 6: Final answer
    x = 11,799.78

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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.