Home / 9,125.64-13,688.46-3,280.88

Finding the Fourth Proportional to 9,125.64, 13,688.46 and 3,280.88

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Solution

The fourth proportional to 9,125.64, 13,688.46 and 3,280.88 is: 4,921.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.64 : 13,688.46 = 3,280.88 : x
  2. Step 2: Convert to fraction form
    9,125.64/13,688.46 = 3,280.88/x
  3. Step 3: Cross multiply
    9,125.64x = 13,688.46 × 3,280.88
  4. Step 4: Simplify right side
    9,125.64x = 44,910,194.64
  5. Step 5: Solve for x
    x = 44,910,194.64/9,125.64
  6. Step 6: Final answer
    x = 4,921.32

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Similar ratio
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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.