Home / 18,407.20-25,401.61-10,449.26

Finding the Fourth Proportional to 18,407.20, 25,401.61 and 10,449.26

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Solution

The fourth proportional to 18,407.20, 25,401.61 and 10,449.26 is: 14,419.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,407.20 : 25,401.61 = 10,449.26 : x
  2. Step 2: Convert to fraction form
    18,407.20/25,401.61 = 10,449.26/x
  3. Step 3: Cross multiply
    18,407.20x = 25,401.61 × 10,449.26
  4. Step 4: Simplify right side
    18,407.20x = 265,428,027.31
  5. Step 5: Solve for x
    x = 265,428,027.31/18,407.20
  6. Step 6: Final answer
    x = 14,419.79

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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.