Home / 9,131.15-13,695.66-2,557.87

Finding the Fourth Proportional to 9,131.15, 13,695.66 and 2,557.87

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Solution

The fourth proportional to 9,131.15, 13,695.66 and 2,557.87 is: 3,836.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131.15 : 13,695.66 = 2,557.87 : x
  2. Step 2: Convert to fraction form
    9,131.15/13,695.66 = 2,557.87/x
  3. Step 3: Cross multiply
    9,131.15x = 13,695.66 × 2,557.87
  4. Step 4: Simplify right side
    9,131.15x = 35,031,717.84
  5. Step 5: Solve for x
    x = 35,031,717.84/9,131.15
  6. Step 6: Final answer
    x = 3,836.51

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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.