Home / 12,463.82-18,679.20-7,190.51

Finding the Fourth Proportional to 12,463.82, 18,679.20 and 7,190.51

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Solution

The fourth proportional to 12,463.82, 18,679.20 and 7,190.51 is: 10,776.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,463.82 : 18,679.20 = 7,190.51 : x
  2. Step 2: Convert to fraction form
    12,463.82/18,679.20 = 7,190.51/x
  3. Step 3: Cross multiply
    12,463.82x = 18,679.20 × 7,190.51
  4. Step 4: Simplify right side
    12,463.82x = 134,312,974.39
  5. Step 5: Solve for x
    x = 134,312,974.39/12,463.82
  6. Step 6: Final answer
    x = 10,776.23

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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.