Home / 8,742.78-13,108.96-3,474.96

Finding the Fourth Proportional to 8,742.78, 13,108.96 and 3,474.96

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Solution

The fourth proportional to 8,742.78, 13,108.96 and 3,474.96 is: 5,210.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.78 : 13,108.96 = 3,474.96 : x
  2. Step 2: Convert to fraction form
    8,742.78/13,108.96 = 3,474.96/x
  3. Step 3: Cross multiply
    8,742.78x = 13,108.96 × 3,474.96
  4. Step 4: Simplify right side
    8,742.78x = 45,553,111.64
  5. Step 5: Solve for x
    x = 45,553,111.64/8,742.78
  6. Step 6: Final answer
    x = 5,210.37

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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.