Home / 18,839.68-25,999.09-10,342.60

Finding the Fourth Proportional to 18,839.68, 25,999.09 and 10,342.60

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Solution

The fourth proportional to 18,839.68, 25,999.09 and 10,342.60 is: 14,272.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,839.68 : 25,999.09 = 10,342.60 : x
  2. Step 2: Convert to fraction form
    18,839.68/25,999.09 = 10,342.60/x
  3. Step 3: Cross multiply
    18,839.68x = 25,999.09 × 10,342.60
  4. Step 4: Simplify right side
    18,839.68x = 268,898,162.38
  5. Step 5: Solve for x
    x = 268,898,162.38/18,839.68
  6. Step 6: Final answer
    x = 14,272.97

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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.