Home / 9,125.42-13,688.25-3,859.76

Finding the Fourth Proportional to 9,125.42, 13,688.25 and 3,859.76

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Solution

The fourth proportional to 9,125.42, 13,688.25 and 3,859.76 is: 5,789.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.42 : 13,688.25 = 3,859.76 : x
  2. Step 2: Convert to fraction form
    9,125.42/13,688.25 = 3,859.76/x
  3. Step 3: Cross multiply
    9,125.42x = 13,688.25 × 3,859.76
  4. Step 4: Simplify right side
    9,125.42x = 52,833,394.04
  5. Step 5: Solve for x
    x = 52,833,394.04/9,125.42
  6. Step 6: Final answer
    x = 5,789.70

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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.