Home / 15,540.28-21,444.74-8,825.74

Finding the Fourth Proportional to 15,540.28, 21,444.74 and 8,825.74

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Solution

The fourth proportional to 15,540.28, 21,444.74 and 8,825.74 is: 12,179.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540.28 : 21,444.74 = 8,825.74 : x
  2. Step 2: Convert to fraction form
    15,540.28/21,444.74 = 8,825.74/x
  3. Step 3: Cross multiply
    15,540.28x = 21,444.74 × 8,825.74
  4. Step 4: Simplify right side
    15,540.28x = 189,265,699.61
  5. Step 5: Solve for x
    x = 189,265,699.61/15,540.28
  6. Step 6: Final answer
    x = 12,179.04

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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.