Home / 13,951.32-20,931.02-5,627.04

Finding the Fourth Proportional to 13,951.32, 20,931.02 and 5,627.04

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Solution

The fourth proportional to 13,951.32, 20,931.02 and 5,627.04 is: 8,442.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,951.32 : 20,931.02 = 5,627.04 : x
  2. Step 2: Convert to fraction form
    13,951.32/20,931.02 = 5,627.04/x
  3. Step 3: Cross multiply
    13,951.32x = 20,931.02 × 5,627.04
  4. Step 4: Simplify right side
    13,951.32x = 117,779,686.78
  5. Step 5: Solve for x
    x = 117,779,686.78/13,951.32
  6. Step 6: Final answer
    x = 8,442.19

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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.