Home / 18,391.13-25,379.02-10,837.78

Finding the Fourth Proportional to 18,391.13, 25,379.02 and 10,837.78

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Solution

The fourth proportional to 18,391.13, 25,379.02 and 10,837.78 is: 14,955.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,391.13 : 25,379.02 = 10,837.78 : x
  2. Step 2: Convert to fraction form
    18,391.13/25,379.02 = 10,837.78/x
  3. Step 3: Cross multiply
    18,391.13x = 25,379.02 × 10,837.78
  4. Step 4: Simplify right side
    18,391.13x = 275,052,308.99
  5. Step 5: Solve for x
    x = 275,052,308.99/18,391.13
  6. Step 6: Final answer
    x = 14,955.70

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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.