Home / 12,515.75-17,272.28-6,926.75

Finding the Fourth Proportional to 12,515.75, 17,272.28 and 6,926.75

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Solution

The fourth proportional to 12,515.75, 17,272.28 and 6,926.75 is: 9,559.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.75 : 17,272.28 = 6,926.75 : x
  2. Step 2: Convert to fraction form
    12,515.75/17,272.28 = 6,926.75/x
  3. Step 3: Cross multiply
    12,515.75x = 17,272.28 × 6,926.75
  4. Step 4: Simplify right side
    12,515.75x = 119,640,730.86
  5. Step 5: Solve for x
    x = 119,640,730.86/12,515.75
  6. Step 6: Final answer
    x = 9,559.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.