Home / 13,387.33-18,474.24-7,418.95

Finding the Fourth Proportional to 13,387.33, 18,474.24 and 7,418.95

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Solution

The fourth proportional to 13,387.33, 18,474.24 and 7,418.95 is: 10,238.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.33 : 18,474.24 = 7,418.95 : x
  2. Step 2: Convert to fraction form
    13,387.33/18,474.24 = 7,418.95/x
  3. Step 3: Cross multiply
    13,387.33x = 18,474.24 × 7,418.95
  4. Step 4: Simplify right side
    13,387.33x = 137,059,462.85
  5. Step 5: Solve for x
    x = 137,059,462.85/13,387.33
  6. Step 6: Final answer
    x = 10,238.00

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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.