Home / 12,522.48-18,781.44-4,728.72

Finding the Fourth Proportional to 12,522.48, 18,781.44 and 4,728.72

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Solution

The fourth proportional to 12,522.48, 18,781.44 and 4,728.72 is: 7,092.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,522.48 : 18,781.44 = 4,728.72 : x
  2. Step 2: Convert to fraction form
    12,522.48/18,781.44 = 4,728.72/x
  3. Step 3: Cross multiply
    12,522.48x = 18,781.44 × 4,728.72
  4. Step 4: Simplify right side
    12,522.48x = 88,812,170.96
  5. Step 5: Solve for x
    x = 88,812,170.96/12,522.48
  6. Step 6: Final answer
    x = 7,092.22

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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.