Home / 18,696.02-25,764.89-13,381.61

Finding the Fourth Proportional to 18,696.02, 25,764.89 and 13,381.61

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Solution

The fourth proportional to 18,696.02, 25,764.89 and 13,381.61 is: 18,441.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,696.02 : 25,764.89 = 13,381.61 : x
  2. Step 2: Convert to fraction form
    18,696.02/25,764.89 = 13,381.61/x
  3. Step 3: Cross multiply
    18,696.02x = 25,764.89 × 13,381.61
  4. Step 4: Simplify right side
    18,696.02x = 344,775,513.94
  5. Step 5: Solve for x
    x = 344,775,513.94/18,696.02
  6. Step 6: Final answer
    x = 18,441.12

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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.