Home / 13,810.10-20,717.85-5,488.70

Finding the Fourth Proportional to 13,810.10, 20,717.85 and 5,488.70

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Solution

The fourth proportional to 13,810.10, 20,717.85 and 5,488.70 is: 8,234.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,810.10 : 20,717.85 = 5,488.70 : x
  2. Step 2: Convert to fraction form
    13,810.10/20,717.85 = 5,488.70/x
  3. Step 3: Cross multiply
    13,810.10x = 20,717.85 × 5,488.70
  4. Step 4: Simplify right side
    13,810.10x = 113,714,063.30
  5. Step 5: Solve for x
    x = 113,714,063.30/13,810.10
  6. Step 6: Final answer
    x = 8,234.12

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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.