Home / 18,963.72-26,155.10-12,250.04

Finding the Fourth Proportional to 18,963.72, 26,155.10 and 12,250.04

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Solution

The fourth proportional to 18,963.72, 26,155.10 and 12,250.04 is: 16,895.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,963.72 : 26,155.10 = 12,250.04 : x
  2. Step 2: Convert to fraction form
    18,963.72/26,155.10 = 12,250.04/x
  3. Step 3: Cross multiply
    18,963.72x = 26,155.10 × 12,250.04
  4. Step 4: Simplify right side
    18,963.72x = 320,400,921.05
  5. Step 5: Solve for x
    x = 320,400,921.05/18,963.72
  6. Step 6: Final answer
    x = 16,895.47

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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.