Home / 13,030.28-17,974.94-7,995.59

Finding the Fourth Proportional to 13,030.28, 17,974.94 and 7,995.59

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Solution

The fourth proportional to 13,030.28, 17,974.94 and 7,995.59 is: 11,029.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,030.28 : 17,974.94 = 7,995.59 : x
  2. Step 2: Convert to fraction form
    13,030.28/17,974.94 = 7,995.59/x
  3. Step 3: Cross multiply
    13,030.28x = 17,974.94 × 7,995.59
  4. Step 4: Simplify right side
    13,030.28x = 143,720,120.66
  5. Step 5: Solve for x
    x = 143,720,120.66/13,030.28
  6. Step 6: Final answer
    x = 11,029.71

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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.