Home / 18,638.94-25,695.32-13,324.52

Finding the Fourth Proportional to 18,638.94, 25,695.32 and 13,324.52

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Solution

The fourth proportional to 18,638.94, 25,695.32 and 13,324.52 is: 18,368.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638.94 : 25,695.32 = 13,324.52 : x
  2. Step 2: Convert to fraction form
    18,638.94/25,695.32 = 13,324.52/x
  3. Step 3: Cross multiply
    18,638.94x = 25,695.32 × 13,324.52
  4. Step 4: Simplify right side
    18,638.94x = 342,377,805.25
  5. Step 5: Solve for x
    x = 342,377,805.25/18,638.94
  6. Step 6: Final answer
    x = 18,368.95

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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.