Home / 17,399.66-26,065.90-10,385.28

Finding the Fourth Proportional to 17,399.66, 26,065.90 and 10,385.28

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Solution

The fourth proportional to 17,399.66, 26,065.90 and 10,385.28 is: 15,557.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,399.66 : 26,065.90 = 10,385.28 : x
  2. Step 2: Convert to fraction form
    17,399.66/26,065.90 = 10,385.28/x
  3. Step 3: Cross multiply
    17,399.66x = 26,065.90 × 10,385.28
  4. Step 4: Simplify right side
    17,399.66x = 270,701,669.95
  5. Step 5: Solve for x
    x = 270,701,669.95/17,399.66
  6. Step 6: Final answer
    x = 15,557.87

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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.