Home / 18,587.34-25,650.21-10,203.78

Finding the Fourth Proportional to 18,587.34, 25,650.21 and 10,203.78

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Solution

The fourth proportional to 18,587.34, 25,650.21 and 10,203.78 is: 14,081.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587.34 : 25,650.21 = 10,203.78 : x
  2. Step 2: Convert to fraction form
    18,587.34/25,650.21 = 10,203.78/x
  3. Step 3: Cross multiply
    18,587.34x = 25,650.21 × 10,203.78
  4. Step 4: Simplify right side
    18,587.34x = 261,729,099.79
  5. Step 5: Solve for x
    x = 261,729,099.79/18,587.34
  6. Step 6: Final answer
    x = 14,081.04

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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.