Home / 18,212.76-25,133.55-10,255.02

Finding the Fourth Proportional to 18,212.76, 25,133.55 and 10,255.02

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Solution

The fourth proportional to 18,212.76, 25,133.55 and 10,255.02 is: 14,151.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212.76 : 25,133.55 = 10,255.02 : x
  2. Step 2: Convert to fraction form
    18,212.76/25,133.55 = 10,255.02/x
  3. Step 3: Cross multiply
    18,212.76x = 25,133.55 × 10,255.02
  4. Step 4: Simplify right side
    18,212.76x = 257,745,057.92
  5. Step 5: Solve for x
    x = 257,745,057.92/18,212.76
  6. Step 6: Final answer
    x = 14,151.89

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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.