Home / 15,490.28-23,229.60-5,627.12

Finding the Fourth Proportional to 15,490.28, 23,229.60 and 5,627.12

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Solution

The fourth proportional to 15,490.28, 23,229.60 and 5,627.12 is: 8,438.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,490.28 : 23,229.60 = 5,627.12 : x
  2. Step 2: Convert to fraction form
    15,490.28/23,229.60 = 5,627.12/x
  3. Step 3: Cross multiply
    15,490.28x = 23,229.60 × 5,627.12
  4. Step 4: Simplify right side
    15,490.28x = 130,715,746.75
  5. Step 5: Solve for x
    x = 130,715,746.75/15,490.28
  6. Step 6: Final answer
    x = 8,438.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.