Home / 8,918.72-13,377.01-2,345.42

Finding the Fourth Proportional to 8,918.72, 13,377.01 and 2,345.42

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Solution

The fourth proportional to 8,918.72, 13,377.01 and 2,345.42 is: 3,517.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.72 : 13,377.01 = 2,345.42 : x
  2. Step 2: Convert to fraction form
    8,918.72/13,377.01 = 2,345.42/x
  3. Step 3: Cross multiply
    8,918.72x = 13,377.01 × 2,345.42
  4. Step 4: Simplify right side
    8,918.72x = 31,374,645.77
  5. Step 5: Solve for x
    x = 31,374,645.77/8,918.72
  6. Step 6: Final answer
    x = 3,517.84

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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.