Home / 18,670.28-25,747.67-13,626.51

Finding the Fourth Proportional to 18,670.28, 25,747.67 and 13,626.51

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Solution

The fourth proportional to 18,670.28, 25,747.67 and 13,626.51 is: 18,791.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670.28 : 25,747.67 = 13,626.51 : x
  2. Step 2: Convert to fraction form
    18,670.28/25,747.67 = 13,626.51/x
  3. Step 3: Cross multiply
    18,670.28x = 25,747.67 × 13,626.51
  4. Step 4: Simplify right side
    18,670.28x = 350,850,685.86
  5. Step 5: Solve for x
    x = 350,850,685.86/18,670.28
  6. Step 6: Final answer
    x = 18,791.94

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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.