Home / 18,277.43-27,417.86-5,129.75

Finding the Fourth Proportional to 18,277.43, 27,417.86 and 5,129.75

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Solution

The fourth proportional to 18,277.43, 27,417.86 and 5,129.75 is: 7,695.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,277.43 : 27,417.86 = 5,129.75 : x
  2. Step 2: Convert to fraction form
    18,277.43/27,417.86 = 5,129.75/x
  3. Step 3: Cross multiply
    18,277.43x = 27,417.86 × 5,129.75
  4. Step 4: Simplify right side
    18,277.43x = 140,646,767.34
  5. Step 5: Solve for x
    x = 140,646,767.34/18,277.43
  6. Step 6: Final answer
    x = 7,695.11

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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.