Home / 13,040.77-17,997.17-7,375.55

Finding the Fourth Proportional to 13,040.77, 17,997.17 and 7,375.55

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Solution

The fourth proportional to 13,040.77, 17,997.17 and 7,375.55 is: 10,178.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,040.77 : 17,997.17 = 7,375.55 : x
  2. Step 2: Convert to fraction form
    13,040.77/17,997.17 = 7,375.55/x
  3. Step 3: Cross multiply
    13,040.77x = 17,997.17 × 7,375.55
  4. Step 4: Simplify right side
    13,040.77x = 132,739,027.19
  5. Step 5: Solve for x
    x = 132,739,027.19/13,040.77
  6. Step 6: Final answer
    x = 10,178.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.