Home / 18,358.73-25,335.21-9,975.23

Finding the Fourth Proportional to 18,358.73, 25,335.21 and 9,975.23

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Solution

The fourth proportional to 18,358.73, 25,335.21 and 9,975.23 is: 13,765.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,358.73 : 25,335.21 = 9,975.23 : x
  2. Step 2: Convert to fraction form
    18,358.73/25,335.21 = 9,975.23/x
  3. Step 3: Cross multiply
    18,358.73x = 25,335.21 × 9,975.23
  4. Step 4: Simplify right side
    18,358.73x = 252,724,610.93
  5. Step 5: Solve for x
    x = 252,724,610.93/18,358.73
  6. Step 6: Final answer
    x = 13,765.91

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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.