Home / 18,351.60-25,323.96-9,967.92

Finding the Fourth Proportional to 18,351.60, 25,323.96 and 9,967.92

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Solution

The fourth proportional to 18,351.60, 25,323.96 and 9,967.92 is: 13,755.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,351.60 : 25,323.96 = 9,967.92 : x
  2. Step 2: Convert to fraction form
    18,351.60/25,323.96 = 9,967.92/x
  3. Step 3: Cross multiply
    18,351.60x = 25,323.96 × 9,967.92
  4. Step 4: Simplify right side
    18,351.60x = 252,427,207.36
  5. Step 5: Solve for x
    x = 252,427,207.36/18,351.60
  6. Step 6: Final answer
    x = 13,755.05

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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.