Home / 18,375.42-25,357.48-10,308.59

Finding the Fourth Proportional to 18,375.42, 25,357.48 and 10,308.59

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Solution

The fourth proportional to 18,375.42, 25,357.48 and 10,308.59 is: 14,225.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,375.42 : 25,357.48 = 10,308.59 : x
  2. Step 2: Convert to fraction form
    18,375.42/25,357.48 = 10,308.59/x
  3. Step 3: Cross multiply
    18,375.42x = 25,357.48 × 10,308.59
  4. Step 4: Simplify right side
    18,375.42x = 261,399,712.19
  5. Step 5: Solve for x
    x = 261,399,712.19/18,375.42
  6. Step 6: Final answer
    x = 14,225.51

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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.