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Finding the Fourth Proportional to 12,499.90, 17,249.93 and 6,834.57

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Solution

The fourth proportional to 12,499.90, 17,249.93 and 6,834.57 is: 9,431.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,499.90 : 17,249.93 = 6,834.57 : x
  2. Step 2: Convert to fraction form
    12,499.90/17,249.93 = 6,834.57/x
  3. Step 3: Cross multiply
    12,499.90x = 17,249.93 × 6,834.57
  4. Step 4: Simplify right side
    12,499.90x = 117,895,854.08
  5. Step 5: Solve for x
    x = 117,895,854.08/12,499.90
  6. Step 6: Final answer
    x = 9,431.74

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Similar ratio
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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.