Home / 12,371.64-18,560.24-3,938.63

Finding the Fourth Proportional to 12,371.64, 18,560.24 and 3,938.63

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Solution

The fourth proportional to 12,371.64, 18,560.24 and 3,938.63 is: 5,908.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,371.64 : 18,560.24 = 3,938.63 : x
  2. Step 2: Convert to fraction form
    12,371.64/18,560.24 = 3,938.63/x
  3. Step 3: Cross multiply
    12,371.64x = 18,560.24 × 3,938.63
  4. Step 4: Simplify right side
    12,371.64x = 73,101,918.07
  5. Step 5: Solve for x
    x = 73,101,918.07/12,371.64
  6. Step 6: Final answer
    x = 5,908.83

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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.