Home / 18,407.20-25,402.24-10,449.66

Finding the Fourth Proportional to 18,407.20, 25,402.24 and 10,449.66

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Solution

The fourth proportional to 18,407.20, 25,402.24 and 10,449.66 is: 14,420.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,407.20 : 25,402.24 = 10,449.66 : x
  2. Step 2: Convert to fraction form
    18,407.20/25,402.24 = 10,449.66/x
  3. Step 3: Cross multiply
    18,407.20x = 25,402.24 × 10,449.66
  4. Step 4: Simplify right side
    18,407.20x = 265,444,771.24
  5. Step 5: Solve for x
    x = 265,444,771.24/18,407.20
  6. Step 6: Final answer
    x = 14,420.70

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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.