Home / 13,327.27-18,391.87-7,358.59

Finding the Fourth Proportional to 13,327.27, 18,391.87 and 7,358.59

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Solution

The fourth proportional to 13,327.27, 18,391.87 and 7,358.59 is: 10,154.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,327.27 : 18,391.87 = 7,358.59 : x
  2. Step 2: Convert to fraction form
    13,327.27/18,391.87 = 7,358.59/x
  3. Step 3: Cross multiply
    13,327.27x = 18,391.87 × 7,358.59
  4. Step 4: Simplify right side
    13,327.27x = 135,338,230.66
  5. Step 5: Solve for x
    x = 135,338,230.66/13,327.27
  6. Step 6: Final answer
    x = 10,154.99

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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.