Home / 7,918.40-11,874.18-3,235.48

Finding the Fourth Proportional to 7,918.40, 11,874.18 and 3,235.48

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Solution

The fourth proportional to 7,918.40, 11,874.18 and 3,235.48 is: 4,851.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.40 : 11,874.18 = 3,235.48 : x
  2. Step 2: Convert to fraction form
    7,918.40/11,874.18 = 3,235.48/x
  3. Step 3: Cross multiply
    7,918.40x = 11,874.18 × 3,235.48
  4. Step 4: Simplify right side
    7,918.40x = 38,418,671.91
  5. Step 5: Solve for x
    x = 38,418,671.91/7,918.40
  6. Step 6: Final answer
    x = 4,851.82

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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.