Home / 8,868.92-12,237.75-5,282.78

Finding the Fourth Proportional to 8,868.92, 12,237.75 and 5,282.78

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Solution

The fourth proportional to 8,868.92, 12,237.75 and 5,282.78 is: 7,289.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.92 : 12,237.75 = 5,282.78 : x
  2. Step 2: Convert to fraction form
    8,868.92/12,237.75 = 5,282.78/x
  3. Step 3: Cross multiply
    8,868.92x = 12,237.75 × 5,282.78
  4. Step 4: Simplify right side
    8,868.92x = 64,649,279.76
  5. Step 5: Solve for x
    x = 64,649,279.76/8,868.92
  6. Step 6: Final answer
    x = 7,289.42

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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.