Home / 18,330.72-25,296.39-10,372.78

Finding the Fourth Proportional to 18,330.72, 25,296.39 and 10,372.78

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Solution

The fourth proportional to 18,330.72, 25,296.39 and 10,372.78 is: 14,314.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,330.72 : 25,296.39 = 10,372.78 : x
  2. Step 2: Convert to fraction form
    18,330.72/25,296.39 = 10,372.78/x
  3. Step 3: Cross multiply
    18,330.72x = 25,296.39 × 10,372.78
  4. Step 4: Simplify right side
    18,330.72x = 262,393,888.26
  5. Step 5: Solve for x
    x = 262,393,888.26/18,330.72
  6. Step 6: Final answer
    x = 14,314.43

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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.