Home / 10,220.68-15,329.49-3,199.06

Finding the Fourth Proportional to 10,220.68, 15,329.49 and 3,199.06

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Solution

The fourth proportional to 10,220.68, 15,329.49 and 3,199.06 is: 4,798.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,220.68 : 15,329.49 = 3,199.06 : x
  2. Step 2: Convert to fraction form
    10,220.68/15,329.49 = 3,199.06/x
  3. Step 3: Cross multiply
    10,220.68x = 15,329.49 × 3,199.06
  4. Step 4: Simplify right side
    10,220.68x = 49,039,958.28
  5. Step 5: Solve for x
    x = 49,039,958.28/10,220.68
  6. Step 6: Final answer
    x = 4,798.11

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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.