Home / 9,056.28-12,487.62-6,399.12

Finding the Fourth Proportional to 9,056.28, 12,487.62 and 6,399.12

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Solution

The fourth proportional to 9,056.28, 12,487.62 and 6,399.12 is: 8,823.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,056.28 : 12,487.62 = 6,399.12 : x
  2. Step 2: Convert to fraction form
    9,056.28/12,487.62 = 6,399.12/x
  3. Step 3: Cross multiply
    9,056.28x = 12,487.62 × 6,399.12
  4. Step 4: Simplify right side
    9,056.28x = 79,909,778.89
  5. Step 5: Solve for x
    x = 79,909,778.89/9,056.28
  6. Step 6: Final answer
    x = 8,823.69

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.