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Finding the Fourth Proportional to 8,868.83, 12,239.02 and 4,889.87

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Solution

The fourth proportional to 8,868.83, 12,239.02 and 4,889.87 is: 6,748.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.83 : 12,239.02 = 4,889.87 : x
  2. Step 2: Convert to fraction form
    8,868.83/12,239.02 = 4,889.87/x
  3. Step 3: Cross multiply
    8,868.83x = 12,239.02 × 4,889.87
  4. Step 4: Simplify right side
    8,868.83x = 59,847,155.53
  5. Step 5: Solve for x
    x = 59,847,155.53/8,868.83
  6. Step 6: Final answer
    x = 6,748.03

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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.