Home / 18,270.78-25,213.19-10,204.21

Finding the Fourth Proportional to 18,270.78, 25,213.19 and 10,204.21

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Solution

The fourth proportional to 18,270.78, 25,213.19 and 10,204.21 is: 14,081.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,270.78 : 25,213.19 = 10,204.21 : x
  2. Step 2: Convert to fraction form
    18,270.78/25,213.19 = 10,204.21/x
  3. Step 3: Cross multiply
    18,270.78x = 25,213.19 × 10,204.21
  4. Step 4: Simplify right side
    18,270.78x = 257,280,685.53
  5. Step 5: Solve for x
    x = 257,280,685.53/18,270.78
  6. Step 6: Final answer
    x = 14,081.54

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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.