Home / 8,834.78-13,278.09-4,221.02

Finding the Fourth Proportional to 8,834.78, 13,278.09 and 4,221.02

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Solution

The fourth proportional to 8,834.78, 13,278.09 and 4,221.02 is: 6,343.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,834.78 : 13,278.09 = 4,221.02 : x
  2. Step 2: Convert to fraction form
    8,834.78/13,278.09 = 4,221.02/x
  3. Step 3: Cross multiply
    8,834.78x = 13,278.09 × 4,221.02
  4. Step 4: Simplify right side
    8,834.78x = 56,047,083.45
  5. Step 5: Solve for x
    x = 56,047,083.45/8,834.78
  6. Step 6: Final answer
    x = 6,343.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.