Home / 18,587.28-25,650.36-10,203.72

Finding the Fourth Proportional to 18,587.28, 25,650.36 and 10,203.72

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Solution

The fourth proportional to 18,587.28, 25,650.36 and 10,203.72 is: 14,081.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587.28 : 25,650.36 = 10,203.72 : x
  2. Step 2: Convert to fraction form
    18,587.28/25,650.36 = 10,203.72/x
  3. Step 3: Cross multiply
    18,587.28x = 25,650.36 × 10,203.72
  4. Step 4: Simplify right side
    18,587.28x = 261,729,091.34
  5. Step 5: Solve for x
    x = 261,729,091.34/18,587.28
  6. Step 6: Final answer
    x = 14,081.09

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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.