Home / 8,869.60-12,237.84-5,722

Finding the Fourth Proportional to 8,869.60, 12,237.84 and 5,722

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Solution

The fourth proportional to 8,869.60, 12,237.84 and 5,722 is: 7,894.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.60 : 12,237.84 = 5,722 : x
  2. Step 2: Convert to fraction form
    8,869.60/12,237.84 = 5,722/x
  3. Step 3: Cross multiply
    8,869.60x = 12,237.84 × 5,722
  4. Step 4: Simplify right side
    8,869.60x = 70,024,920.48
  5. Step 5: Solve for x
    x = 70,024,920.48/8,869.60
  6. Step 6: Final answer
    x = 7,894.94

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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.