Home / 13,247.38-18,281.73-7,279.37

Finding the Fourth Proportional to 13,247.38, 18,281.73 and 7,279.37

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Solution

The fourth proportional to 13,247.38, 18,281.73 and 7,279.37 is: 10,045.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.38 : 18,281.73 = 7,279.37 : x
  2. Step 2: Convert to fraction form
    13,247.38/18,281.73 = 7,279.37/x
  3. Step 3: Cross multiply
    13,247.38x = 18,281.73 × 7,279.37
  4. Step 4: Simplify right side
    13,247.38x = 133,079,476.91
  5. Step 5: Solve for x
    x = 133,079,476.91/13,247.38
  6. Step 6: Final answer
    x = 10,045.72

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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.