Home / 9,135.48-13,705.38-2,895.78

Finding the Fourth Proportional to 9,135.48, 13,705.38 and 2,895.78

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Solution

The fourth proportional to 9,135.48, 13,705.38 and 2,895.78 is: 4,344.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.48 : 13,705.38 = 2,895.78 : x
  2. Step 2: Convert to fraction form
    9,135.48/13,705.38 = 2,895.78/x
  3. Step 3: Cross multiply
    9,135.48x = 13,705.38 × 2,895.78
  4. Step 4: Simplify right side
    9,135.48x = 39,687,765.30
  5. Step 5: Solve for x
    x = 39,687,765.30/9,135.48
  6. Step 6: Final answer
    x = 4,344.35

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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.