Home / 8,740.82-12,062.04-5,202.20

Finding the Fourth Proportional to 8,740.82, 12,062.04 and 5,202.20

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Solution

The fourth proportional to 8,740.82, 12,062.04 and 5,202.20 is: 7,178.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,740.82 : 12,062.04 = 5,202.20 : x
  2. Step 2: Convert to fraction form
    8,740.82/12,062.04 = 5,202.20/x
  3. Step 3: Cross multiply
    8,740.82x = 12,062.04 × 5,202.20
  4. Step 4: Simplify right side
    8,740.82x = 62,749,144.49
  5. Step 5: Solve for x
    x = 62,749,144.49/8,740.82
  6. Step 6: Final answer
    x = 7,178.86

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1.5x scale

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.