Home / 13,712.55-18,923.39-7,424.92

Finding the Fourth Proportional to 13,712.55, 18,923.39 and 7,424.92

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Solution

The fourth proportional to 13,712.55, 18,923.39 and 7,424.92 is: 10,246.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.55 : 18,923.39 = 7,424.92 : x
  2. Step 2: Convert to fraction form
    13,712.55/18,923.39 = 7,424.92/x
  3. Step 3: Cross multiply
    13,712.55x = 18,923.39 × 7,424.92
  4. Step 4: Simplify right side
    13,712.55x = 140,504,656.88
  5. Step 5: Solve for x
    x = 140,504,656.88/13,712.55
  6. Step 6: Final answer
    x = 10,246.43

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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.