Home / 18,449.49-25,458.20-10,381.59

Finding the Fourth Proportional to 18,449.49, 25,458.20 and 10,381.59

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Solution

The fourth proportional to 18,449.49, 25,458.20 and 10,381.59 is: 14,325.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,449.49 : 25,458.20 = 10,381.59 : x
  2. Step 2: Convert to fraction form
    18,449.49/25,458.20 = 10,381.59/x
  3. Step 3: Cross multiply
    18,449.49x = 25,458.20 × 10,381.59
  4. Step 4: Simplify right side
    18,449.49x = 264,296,581.56
  5. Step 5: Solve for x
    x = 264,296,581.56/18,449.49
  6. Step 6: Final answer
    x = 14,325.41

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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.