Home / 18,323.07-25,285.82-9,939.57

Finding the Fourth Proportional to 18,323.07, 25,285.82 and 9,939.57

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Solution

The fourth proportional to 18,323.07, 25,285.82 and 9,939.57 is: 13,716.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,323.07 : 25,285.82 = 9,939.57 : x
  2. Step 2: Convert to fraction form
    18,323.07/25,285.82 = 9,939.57/x
  3. Step 3: Cross multiply
    18,323.07x = 25,285.82 × 9,939.57
  4. Step 4: Simplify right side
    18,323.07x = 251,330,177.90
  5. Step 5: Solve for x
    x = 251,330,177.90/18,323.07
  6. Step 6: Final answer
    x = 13,716.60

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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.