Home / 10,219.23-15,323.25-3,196.20

Finding the Fourth Proportional to 10,219.23, 15,323.25 and 3,196.20

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Solution

The fourth proportional to 10,219.23, 15,323.25 and 3,196.20 is: 4,792.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,219.23 : 15,323.25 = 3,196.20 : x
  2. Step 2: Convert to fraction form
    10,219.23/15,323.25 = 3,196.20/x
  3. Step 3: Cross multiply
    10,219.23x = 15,323.25 × 3,196.20
  4. Step 4: Simplify right side
    10,219.23x = 48,976,171.65
  5. Step 5: Solve for x
    x = 48,976,171.65/10,219.23
  6. Step 6: Final answer
    x = 4,792.55

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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.