Home / 8,815.12-13,202.42-5,108.18

Finding the Fourth Proportional to 8,815.12, 13,202.42 and 5,108.18

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Solution

The fourth proportional to 8,815.12, 13,202.42 and 5,108.18 is: 7,650.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.12 : 13,202.42 = 5,108.18 : x
  2. Step 2: Convert to fraction form
    8,815.12/13,202.42 = 5,108.18/x
  3. Step 3: Cross multiply
    8,815.12x = 13,202.42 × 5,108.18
  4. Step 4: Simplify right side
    8,815.12x = 67,440,337.80
  5. Step 5: Solve for x
    x = 67,440,337.80/8,815.12
  6. Step 6: Final answer
    x = 7,650.53

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1.5x scale

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.