Home / 9,146.30-13,719.46-2,220.80

Finding the Fourth Proportional to 9,146.30, 13,719.46 and 2,220.80

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Solution

The fourth proportional to 9,146.30, 13,719.46 and 2,220.80 is: 3,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,146.30 : 13,719.46 = 2,220.80 : x
  2. Step 2: Convert to fraction form
    9,146.30/13,719.46 = 2,220.80/x
  3. Step 3: Cross multiply
    9,146.30x = 13,719.46 × 2,220.80
  4. Step 4: Simplify right side
    9,146.30x = 30,468,176.77
  5. Step 5: Solve for x
    x = 30,468,176.77/9,146.30
  6. Step 6: Final answer
    x = 3,331.20

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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.