Home / 12,934.86-17,850.32-7,114.21

Finding the Fourth Proportional to 12,934.86, 17,850.32 and 7,114.21

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Solution

The fourth proportional to 12,934.86, 17,850.32 and 7,114.21 is: 9,817.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,934.86 : 17,850.32 = 7,114.21 : x
  2. Step 2: Convert to fraction form
    12,934.86/17,850.32 = 7,114.21/x
  3. Step 3: Cross multiply
    12,934.86x = 17,850.32 × 7,114.21
  4. Step 4: Simplify right side
    12,934.86x = 126,991,011.95
  5. Step 5: Solve for x
    x = 126,991,011.95/12,934.86
  6. Step 6: Final answer
    x = 9,817.74

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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.