Home / 12,324.38-18,486.29-8,365.76

Finding the Fourth Proportional to 12,324.38, 18,486.29 and 8,365.76

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Solution

The fourth proportional to 12,324.38, 18,486.29 and 8,365.76 is: 12,548.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,324.38 : 18,486.29 = 8,365.76 : x
  2. Step 2: Convert to fraction form
    12,324.38/18,486.29 = 8,365.76/x
  3. Step 3: Cross multiply
    12,324.38x = 18,486.29 × 8,365.76
  4. Step 4: Simplify right side
    12,324.38x = 154,651,865.43
  5. Step 5: Solve for x
    x = 154,651,865.43/12,324.38
  6. Step 6: Final answer
    x = 12,548.45

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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.