Home / 8,419.60-12,627.87-4,261.42

Finding the Fourth Proportional to 8,419.60, 12,627.87 and 4,261.42

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Solution

The fourth proportional to 8,419.60, 12,627.87 and 4,261.42 is: 6,391.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.60 : 12,627.87 = 4,261.42 : x
  2. Step 2: Convert to fraction form
    8,419.60/12,627.87 = 4,261.42/x
  3. Step 3: Cross multiply
    8,419.60x = 12,627.87 × 4,261.42
  4. Step 4: Simplify right side
    8,419.60x = 53,812,657.78
  5. Step 5: Solve for x
    x = 53,812,657.78/8,419.60
  6. Step 6: Final answer
    x = 6,391.36

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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.