Home / 17,405.20-26,112.32-7,542.20

Finding the Fourth Proportional to 17,405.20, 26,112.32 and 7,542.20

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Solution

The fourth proportional to 17,405.20, 26,112.32 and 7,542.20 is: 11,315.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,405.20 : 26,112.32 = 7,542.20 : x
  2. Step 2: Convert to fraction form
    17,405.20/26,112.32 = 7,542.20/x
  3. Step 3: Cross multiply
    17,405.20x = 26,112.32 × 7,542.20
  4. Step 4: Simplify right side
    17,405.20x = 196,944,339.90
  5. Step 5: Solve for x
    x = 196,944,339.90/17,405.20
  6. Step 6: Final answer
    x = 11,315.26

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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.