Home / 15,422.10-21,282.50-8,348.52

Finding the Fourth Proportional to 15,422.10, 21,282.50 and 8,348.52

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Solution

The fourth proportional to 15,422.10, 21,282.50 and 8,348.52 is: 11,520.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,422.10 : 21,282.50 = 8,348.52 : x
  2. Step 2: Convert to fraction form
    15,422.10/21,282.50 = 8,348.52/x
  3. Step 3: Cross multiply
    15,422.10x = 21,282.50 × 8,348.52
  4. Step 4: Simplify right side
    15,422.10x = 177,677,376.90
  5. Step 5: Solve for x
    x = 177,677,376.90/15,422.10
  6. Step 6: Final answer
    x = 11,520.96

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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.