Home / 18,213.67-25,132.08-10,255.69

Finding the Fourth Proportional to 18,213.67, 25,132.08 and 10,255.69

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Solution

The fourth proportional to 18,213.67, 25,132.08 and 10,255.69 is: 14,151.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,213.67 : 25,132.08 = 10,255.69 : x
  2. Step 2: Convert to fraction form
    18,213.67/25,132.08 = 10,255.69/x
  3. Step 3: Cross multiply
    18,213.67x = 25,132.08 × 10,255.69
  4. Step 4: Simplify right side
    18,213.67x = 257,746,821.54
  5. Step 5: Solve for x
    x = 257,746,821.54/18,213.67
  6. Step 6: Final answer
    x = 14,151.28

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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.