Home / 9,129.15-13,695.35-3,585.11

Finding the Fourth Proportional to 9,129.15, 13,695.35 and 3,585.11

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Solution

The fourth proportional to 9,129.15, 13,695.35 and 3,585.11 is: 5,378.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.15 : 13,695.35 = 3,585.11 : x
  2. Step 2: Convert to fraction form
    9,129.15/13,695.35 = 3,585.11/x
  3. Step 3: Cross multiply
    9,129.15x = 13,695.35 × 3,585.11
  4. Step 4: Simplify right side
    9,129.15x = 49,099,249.84
  5. Step 5: Solve for x
    x = 49,099,249.84/9,129.15
  6. Step 6: Final answer
    x = 5,378.29

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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.