Home / 8,868.35-12,240.45-5,330.88

Finding the Fourth Proportional to 8,868.35, 12,240.45 and 5,330.88

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Solution

The fourth proportional to 8,868.35, 12,240.45 and 5,330.88 is: 7,357.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.35 : 12,240.45 = 5,330.88 : x
  2. Step 2: Convert to fraction form
    8,868.35/12,240.45 = 5,330.88/x
  3. Step 3: Cross multiply
    8,868.35x = 12,240.45 × 5,330.88
  4. Step 4: Simplify right side
    8,868.35x = 65,252,318.89
  5. Step 5: Solve for x
    x = 65,252,318.89/8,868.35
  6. Step 6: Final answer
    x = 7,357.89

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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.