Home / 8,901.60-13,352.40-5,445.60

Finding the Fourth Proportional to 8,901.60, 13,352.40 and 5,445.60

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Solution

The fourth proportional to 8,901.60, 13,352.40 and 5,445.60 is: 8,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.60 : 13,352.40 = 5,445.60 : x
  2. Step 2: Convert to fraction form
    8,901.60/13,352.40 = 5,445.60/x
  3. Step 3: Cross multiply
    8,901.60x = 13,352.40 × 5,445.60
  4. Step 4: Simplify right side
    8,901.60x = 72,711,829.44
  5. Step 5: Solve for x
    x = 72,711,829.44/8,901.60
  6. Step 6: Final answer
    x = 8,168.40

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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.