Home / 13,317.26-18,377.19-7,648.01

Finding the Fourth Proportional to 13,317.26, 18,377.19 and 7,648.01

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Solution

The fourth proportional to 13,317.26, 18,377.19 and 7,648.01 is: 10,553.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.26 : 18,377.19 = 7,648.01 : x
  2. Step 2: Convert to fraction form
    13,317.26/18,377.19 = 7,648.01/x
  3. Step 3: Cross multiply
    13,317.26x = 18,377.19 × 7,648.01
  4. Step 4: Simplify right side
    13,317.26x = 140,548,909.92
  5. Step 5: Solve for x
    x = 140,548,909.92/13,317.26
  6. Step 6: Final answer
    x = 10,553.89

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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.