Home / 9,135.21-13,705.17-2,561.46

Finding the Fourth Proportional to 9,135.21, 13,705.17 and 2,561.46

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Solution

The fourth proportional to 9,135.21, 13,705.17 and 2,561.46 is: 3,842.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.21 : 13,705.17 = 2,561.46 : x
  2. Step 2: Convert to fraction form
    9,135.21/13,705.17 = 2,561.46/x
  3. Step 3: Cross multiply
    9,135.21x = 13,705.17 × 2,561.46
  4. Step 4: Simplify right side
    9,135.21x = 35,105,244.75
  5. Step 5: Solve for x
    x = 35,105,244.75/9,135.21
  6. Step 6: Final answer
    x = 3,842.85

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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.