Home / 17,120.80-25,688.40-9,335.20

Finding the Fourth Proportional to 17,120.80, 25,688.40 and 9,335.20

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Solution

The fourth proportional to 17,120.80, 25,688.40 and 9,335.20 is: 14,006.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,120.80 : 25,688.40 = 9,335.20 : x
  2. Step 2: Convert to fraction form
    17,120.80/25,688.40 = 9,335.20/x
  3. Step 3: Cross multiply
    17,120.80x = 25,688.40 × 9,335.20
  4. Step 4: Simplify right side
    17,120.80x = 239,806,351.68
  5. Step 5: Solve for x
    x = 239,806,351.68/17,120.80
  6. Step 6: Final answer
    x = 14,006.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.