Home / 18,245.24-25,178.47-10,287.45

Finding the Fourth Proportional to 18,245.24, 25,178.47 and 10,287.45

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Solution

The fourth proportional to 18,245.24, 25,178.47 and 10,287.45 is: 14,196.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.24 : 25,178.47 = 10,287.45 : x
  2. Step 2: Convert to fraction form
    18,245.24/25,178.47 = 10,287.45/x
  3. Step 3: Cross multiply
    18,245.24x = 25,178.47 × 10,287.45
  4. Step 4: Simplify right side
    18,245.24x = 259,022,251.20
  5. Step 5: Solve for x
    x = 259,022,251.20/18,245.24
  6. Step 6: Final answer
    x = 14,196.70

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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.