Home / 8,820.78-13,216.26-4,372.50

Finding the Fourth Proportional to 8,820.78, 13,216.26 and 4,372.50

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Solution

The fourth proportional to 8,820.78, 13,216.26 and 4,372.50 is: 6,551.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,820.78 : 13,216.26 = 4,372.50 : x
  2. Step 2: Convert to fraction form
    8,820.78/13,216.26 = 4,372.50/x
  3. Step 3: Cross multiply
    8,820.78x = 13,216.26 × 4,372.50
  4. Step 4: Simplify right side
    8,820.78x = 57,788,096.85
  5. Step 5: Solve for x
    x = 57,788,096.85/8,820.78
  6. Step 6: Final answer
    x = 6,551.36

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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.