Home / 7,869.10-11,791.35-4,170.34

Finding the Fourth Proportional to 7,869.10, 11,791.35 and 4,170.34

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Solution

The fourth proportional to 7,869.10, 11,791.35 and 4,170.34 is: 6,248.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.10 : 11,791.35 = 4,170.34 : x
  2. Step 2: Convert to fraction form
    7,869.10/11,791.35 = 4,170.34/x
  3. Step 3: Cross multiply
    7,869.10x = 11,791.35 × 4,170.34
  4. Step 4: Simplify right side
    7,869.10x = 49,173,875.24
  5. Step 5: Solve for x
    x = 49,173,875.24/7,869.10
  6. Step 6: Final answer
    x = 6,248.98

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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.