Home / 12,391.27-18,570.45-6,754.47

Finding the Fourth Proportional to 12,391.27, 18,570.45 and 6,754.47

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Solution

The fourth proportional to 12,391.27, 18,570.45 and 6,754.47 is: 10,122.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,391.27 : 18,570.45 = 6,754.47 : x
  2. Step 2: Convert to fraction form
    12,391.27/18,570.45 = 6,754.47/x
  3. Step 3: Cross multiply
    12,391.27x = 18,570.45 × 6,754.47
  4. Step 4: Simplify right side
    12,391.27x = 125,433,503.10
  5. Step 5: Solve for x
    x = 125,433,503.10/12,391.27
  6. Step 6: Final answer
    x = 10,122.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.