Home / 18,899.66-28,351.08-5,752.15

Finding the Fourth Proportional to 18,899.66, 28,351.08 and 5,752.15

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Solution

The fourth proportional to 18,899.66, 28,351.08 and 5,752.15 is: 8,628.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,899.66 : 28,351.08 = 5,752.15 : x
  2. Step 2: Convert to fraction form
    18,899.66/28,351.08 = 5,752.15/x
  3. Step 3: Cross multiply
    18,899.66x = 28,351.08 × 5,752.15
  4. Step 4: Simplify right side
    18,899.66x = 163,079,593.94
  5. Step 5: Solve for x
    x = 163,079,593.94/18,899.66
  6. Step 6: Final answer
    x = 8,628.70

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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.