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Finding the Fourth Proportional to 12,314.29, 16,993.02 and 7,278.98

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Solution

The fourth proportional to 12,314.29, 16,993.02 and 7,278.98 is: 10,044.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,314.29 : 16,993.02 = 7,278.98 : x
  2. Step 2: Convert to fraction form
    12,314.29/16,993.02 = 7,278.98/x
  3. Step 3: Cross multiply
    12,314.29x = 16,993.02 × 7,278.98
  4. Step 4: Simplify right side
    12,314.29x = 123,691,767.75
  5. Step 5: Solve for x
    x = 123,691,767.75/12,314.29
  6. Step 6: Final answer
    x = 10,044.57

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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.