Home / 12,591.75-17,377-6,926.21

Finding the Fourth Proportional to 12,591.75, 17,377 and 6,926.21

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Solution

The fourth proportional to 12,591.75, 17,377 and 6,926.21 is: 9,558.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591.75 : 17,377 = 6,926.21 : x
  2. Step 2: Convert to fraction form
    12,591.75/17,377 = 6,926.21/x
  3. Step 3: Cross multiply
    12,591.75x = 17,377 × 6,926.21
  4. Step 4: Simplify right side
    12,591.75x = 120,356,751.17
  5. Step 5: Solve for x
    x = 120,356,751.17/12,591.75
  6. Step 6: Final answer
    x = 9,558.38

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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.