Home / 8,777.44-12,119.21-5,424.85

Finding the Fourth Proportional to 8,777.44, 12,119.21 and 5,424.85

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Solution

The fourth proportional to 8,777.44, 12,119.21 and 5,424.85 is: 7,490.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,777.44 : 12,119.21 = 5,424.85 : x
  2. Step 2: Convert to fraction form
    8,777.44/12,119.21 = 5,424.85/x
  3. Step 3: Cross multiply
    8,777.44x = 12,119.21 × 5,424.85
  4. Step 4: Simplify right side
    8,777.44x = 65,744,863.02
  5. Step 5: Solve for x
    x = 65,744,863.02/8,777.44
  6. Step 6: Final answer
    x = 7,490.21

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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.