Home / 13,442.28-18,550.11-7,473.90

Finding the Fourth Proportional to 13,442.28, 18,550.11 and 7,473.90

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Solution

The fourth proportional to 13,442.28, 18,550.11 and 7,473.90 is: 10,313.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.28 : 18,550.11 = 7,473.90 : x
  2. Step 2: Convert to fraction form
    13,442.28/18,550.11 = 7,473.90/x
  3. Step 3: Cross multiply
    13,442.28x = 18,550.11 × 7,473.90
  4. Step 4: Simplify right side
    13,442.28x = 138,641,667.13
  5. Step 5: Solve for x
    x = 138,641,667.13/13,442.28
  6. Step 6: Final answer
    x = 10,313.85

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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.