Home / 12,652.57-18,981.53-4,755.15

Finding the Fourth Proportional to 12,652.57, 18,981.53 and 4,755.15

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Solution

The fourth proportional to 12,652.57, 18,981.53 and 4,755.15 is: 7,133.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,652.57 : 18,981.53 = 4,755.15 : x
  2. Step 2: Convert to fraction form
    12,652.57/18,981.53 = 4,755.15/x
  3. Step 3: Cross multiply
    12,652.57x = 18,981.53 × 4,755.15
  4. Step 4: Simplify right side
    12,652.57x = 90,259,998.60
  5. Step 5: Solve for x
    x = 90,259,998.60/12,652.57
  6. Step 6: Final answer
    x = 7,133.73

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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.