Home / 12,151.77-18,229.18-4,755.28

Finding the Fourth Proportional to 12,151.77, 18,229.18 and 4,755.28

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Solution

The fourth proportional to 12,151.77, 18,229.18 and 4,755.28 is: 7,133.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,151.77 : 18,229.18 = 4,755.28 : x
  2. Step 2: Convert to fraction form
    12,151.77/18,229.18 = 4,755.28/x
  3. Step 3: Cross multiply
    12,151.77x = 18,229.18 × 4,755.28
  4. Step 4: Simplify right side
    12,151.77x = 86,684,772.35
  5. Step 5: Solve for x
    x = 86,684,772.35/12,151.77
  6. Step 6: Final answer
    x = 7,133.51

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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.