Home / 13,247.10-19,863.45-5,456.70

Finding the Fourth Proportional to 13,247.10, 19,863.45 and 5,456.70

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Solution

The fourth proportional to 13,247.10, 19,863.45 and 5,456.70 is: 8,182.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.10 : 19,863.45 = 5,456.70 : x
  2. Step 2: Convert to fraction form
    13,247.10/19,863.45 = 5,456.70/x
  3. Step 3: Cross multiply
    13,247.10x = 19,863.45 × 5,456.70
  4. Step 4: Simplify right side
    13,247.10x = 108,388,887.62
  5. Step 5: Solve for x
    x = 108,388,887.62/13,247.10
  6. Step 6: Final answer
    x = 8,182.08

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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.