Home / 13,279.90-19,931.20-7,044.26

Finding the Fourth Proportional to 13,279.90, 19,931.20 and 7,044.26

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Solution

The fourth proportional to 13,279.90, 19,931.20 and 7,044.26 is: 10,572.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.90 : 19,931.20 = 7,044.26 : x
  2. Step 2: Convert to fraction form
    13,279.90/19,931.20 = 7,044.26/x
  3. Step 3: Cross multiply
    13,279.90x = 19,931.20 × 7,044.26
  4. Step 4: Simplify right side
    13,279.90x = 140,400,554.91
  5. Step 5: Solve for x
    x = 140,400,554.91/13,279.90
  6. Step 6: Final answer
    x = 10,572.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.