Home / 13,299.38-18,352.31-7,330.72

Finding the Fourth Proportional to 13,299.38, 18,352.31 and 7,330.72

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Solution

The fourth proportional to 13,299.38, 18,352.31 and 7,330.72 is: 10,115.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.38 : 18,352.31 = 7,330.72 : x
  2. Step 2: Convert to fraction form
    13,299.38/18,352.31 = 7,330.72/x
  3. Step 3: Cross multiply
    13,299.38x = 18,352.31 × 7,330.72
  4. Step 4: Simplify right side
    13,299.38x = 134,535,645.96
  5. Step 5: Solve for x
    x = 134,535,645.96/13,299.38
  6. Step 6: Final answer
    x = 10,115.93

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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.