Home / 8,868.28-12,238.24-4,889.76

Finding the Fourth Proportional to 8,868.28, 12,238.24 and 4,889.76

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Solution

The fourth proportional to 8,868.28, 12,238.24 and 4,889.76 is: 6,747.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.28 : 12,238.24 = 4,889.76 : x
  2. Step 2: Convert to fraction form
    8,868.28/12,238.24 = 4,889.76/x
  3. Step 3: Cross multiply
    8,868.28x = 12,238.24 × 4,889.76
  4. Step 4: Simplify right side
    8,868.28x = 59,842,056.42
  5. Step 5: Solve for x
    x = 59,842,056.42/8,868.28
  6. Step 6: Final answer
    x = 6,747.88

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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.