Home / 18,742.25-25,864.31-10,358.75

Finding the Fourth Proportional to 18,742.25, 25,864.31 and 10,358.75

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Solution

The fourth proportional to 18,742.25, 25,864.31 and 10,358.75 is: 14,295.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,742.25 : 25,864.31 = 10,358.75 : x
  2. Step 2: Convert to fraction form
    18,742.25/25,864.31 = 10,358.75/x
  3. Step 3: Cross multiply
    18,742.25x = 25,864.31 × 10,358.75
  4. Step 4: Simplify right side
    18,742.25x = 267,921,921.21
  5. Step 5: Solve for x
    x = 267,921,921.21/18,742.25
  6. Step 6: Final answer
    x = 14,295.08

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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.