Home / 8,868.68-12,239.33-4,889.78

Finding the Fourth Proportional to 8,868.68, 12,239.33 and 4,889.78

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Solution

The fourth proportional to 8,868.68, 12,239.33 and 4,889.78 is: 6,748.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.68 : 12,239.33 = 4,889.78 : x
  2. Step 2: Convert to fraction form
    8,868.68/12,239.33 = 4,889.78/x
  3. Step 3: Cross multiply
    8,868.68x = 12,239.33 × 4,889.78
  4. Step 4: Simplify right side
    8,868.68x = 59,847,631.05
  5. Step 5: Solve for x
    x = 59,847,631.05/8,868.68
  6. Step 6: Final answer
    x = 6,748.20

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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.