Home / 15,199.45-20,984.85-10,427.38

Finding the Fourth Proportional to 15,199.45, 20,984.85 and 10,427.38

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Solution

The fourth proportional to 15,199.45, 20,984.85 and 10,427.38 is: 14,396.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,199.45 : 20,984.85 = 10,427.38 : x
  2. Step 2: Convert to fraction form
    15,199.45/20,984.85 = 10,427.38/x
  3. Step 3: Cross multiply
    15,199.45x = 20,984.85 × 10,427.38
  4. Step 4: Simplify right side
    15,199.45x = 218,816,952.73
  5. Step 5: Solve for x
    x = 218,816,952.73/15,199.45
  6. Step 6: Final answer
    x = 14,396.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.