Home / 17,212.80-25,821.12-5,521.92

Finding the Fourth Proportional to 17,212.80, 25,821.12 and 5,521.92

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Solution

The fourth proportional to 17,212.80, 25,821.12 and 5,521.92 is: 8,283.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,212.80 : 25,821.12 = 5,521.92 : x
  2. Step 2: Convert to fraction form
    17,212.80/25,821.12 = 5,521.92/x
  3. Step 3: Cross multiply
    17,212.80x = 25,821.12 × 5,521.92
  4. Step 4: Simplify right side
    17,212.80x = 142,582,158.95
  5. Step 5: Solve for x
    x = 142,582,158.95/17,212.80
  6. Step 6: Final answer
    x = 8,283.50

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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.