Home / 9,139.26-13,700.65-3,291.75

Finding the Fourth Proportional to 9,139.26, 13,700.65 and 3,291.75

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Solution

The fourth proportional to 9,139.26, 13,700.65 and 3,291.75 is: 4,934.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139.26 : 13,700.65 = 3,291.75 : x
  2. Step 2: Convert to fraction form
    9,139.26/13,700.65 = 3,291.75/x
  3. Step 3: Cross multiply
    9,139.26x = 13,700.65 × 3,291.75
  4. Step 4: Simplify right side
    9,139.26x = 45,099,114.64
  5. Step 5: Solve for x
    x = 45,099,114.64/9,139.26
  6. Step 6: Final answer
    x = 4,934.66

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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.