Home / 13,442.77-18,550.92-7,474.38

Finding the Fourth Proportional to 13,442.77, 18,550.92 and 7,474.38

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Solution

The fourth proportional to 13,442.77, 18,550.92 and 7,474.38 is: 10,314.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.77 : 18,550.92 = 7,474.38 : x
  2. Step 2: Convert to fraction form
    13,442.77/18,550.92 = 7,474.38/x
  3. Step 3: Cross multiply
    13,442.77x = 18,550.92 × 7,474.38
  4. Step 4: Simplify right side
    13,442.77x = 138,656,666.97
  5. Step 5: Solve for x
    x = 138,656,666.97/13,442.77
  6. Step 6: Final answer
    x = 10,314.59

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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.