Home / 8,755.38-13,135.65-4,078.14

Finding the Fourth Proportional to 8,755.38, 13,135.65 and 4,078.14

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Solution

The fourth proportional to 8,755.38, 13,135.65 and 4,078.14 is: 6,118.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,755.38 : 13,135.65 = 4,078.14 : x
  2. Step 2: Convert to fraction form
    8,755.38/13,135.65 = 4,078.14/x
  3. Step 3: Cross multiply
    8,755.38x = 13,135.65 × 4,078.14
  4. Step 4: Simplify right side
    8,755.38x = 53,569,019.69
  5. Step 5: Solve for x
    x = 53,569,019.69/8,755.38
  6. Step 6: Final answer
    x = 6,118.41

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1.5x scale

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.