Home / 9,331.60-12,880.25-6,147.22

Finding the Fourth Proportional to 9,331.60, 12,880.25 and 6,147.22

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Solution

The fourth proportional to 9,331.60, 12,880.25 and 6,147.22 is: 8,484.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,331.60 : 12,880.25 = 6,147.22 : x
  2. Step 2: Convert to fraction form
    9,331.60/12,880.25 = 6,147.22/x
  3. Step 3: Cross multiply
    9,331.60x = 12,880.25 × 6,147.22
  4. Step 4: Simplify right side
    9,331.60x = 79,177,730.41
  5. Step 5: Solve for x
    x = 79,177,730.41/9,331.60
  6. Step 6: Final answer
    x = 8,484.90

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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.