Home / 12,715.13-17,546.57-7,049.77

Finding the Fourth Proportional to 12,715.13, 17,546.57 and 7,049.77

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Solution

The fourth proportional to 12,715.13, 17,546.57 and 7,049.77 is: 9,728.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,715.13 : 17,546.57 = 7,049.77 : x
  2. Step 2: Convert to fraction form
    12,715.13/17,546.57 = 7,049.77/x
  3. Step 3: Cross multiply
    12,715.13x = 17,546.57 × 7,049.77
  4. Step 4: Simplify right side
    12,715.13x = 123,699,282.79
  5. Step 5: Solve for x
    x = 123,699,282.79/12,715.13
  6. Step 6: Final answer
    x = 9,728.51

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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.