Home / 8,861.49-12,228.80-4,882.55

Finding the Fourth Proportional to 8,861.49, 12,228.80 and 4,882.55

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Solution

The fourth proportional to 8,861.49, 12,228.80 and 4,882.55 is: 6,737.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.49 : 12,228.80 = 4,882.55 : x
  2. Step 2: Convert to fraction form
    8,861.49/12,228.80 = 4,882.55/x
  3. Step 3: Cross multiply
    8,861.49x = 12,228.80 × 4,882.55
  4. Step 4: Simplify right side
    8,861.49x = 59,707,641.88
  5. Step 5: Solve for x
    x = 59,707,641.88/8,861.49
  6. Step 6: Final answer
    x = 6,737.88

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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.