Home / 8,759.34-13,139.91-2,914.38

Finding the Fourth Proportional to 8,759.34, 13,139.91 and 2,914.38

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Solution

The fourth proportional to 8,759.34, 13,139.91 and 2,914.38 is: 4,371.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759.34 : 13,139.91 = 2,914.38 : x
  2. Step 2: Convert to fraction form
    8,759.34/13,139.91 = 2,914.38/x
  3. Step 3: Cross multiply
    8,759.34x = 13,139.91 × 2,914.38
  4. Step 4: Simplify right side
    8,759.34x = 38,294,690.91
  5. Step 5: Solve for x
    x = 38,294,690.91/8,759.34
  6. Step 6: Final answer
    x = 4,371.87

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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.