Home / 12,549.12-18,823.68-5,152.16

Finding the Fourth Proportional to 12,549.12, 18,823.68 and 5,152.16

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Solution

The fourth proportional to 12,549.12, 18,823.68 and 5,152.16 is: 7,728.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.12 : 18,823.68 = 5,152.16 : x
  2. Step 2: Convert to fraction form
    12,549.12/18,823.68 = 5,152.16/x
  3. Step 3: Cross multiply
    12,549.12x = 18,823.68 × 5,152.16
  4. Step 4: Simplify right side
    12,549.12x = 96,982,611.15
  5. Step 5: Solve for x
    x = 96,982,611.15/12,549.12
  6. Step 6: Final answer
    x = 7,728.24

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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.