Home / 10,119.79-15,178.60-3,193.75

Finding the Fourth Proportional to 10,119.79, 15,178.60 and 3,193.75

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Solution

The fourth proportional to 10,119.79, 15,178.60 and 3,193.75 is: 4,790.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,119.79 : 15,178.60 = 3,193.75 : x
  2. Step 2: Convert to fraction form
    10,119.79/15,178.60 = 3,193.75/x
  3. Step 3: Cross multiply
    10,119.79x = 15,178.60 × 3,193.75
  4. Step 4: Simplify right side
    10,119.79x = 48,476,653.75
  5. Step 5: Solve for x
    x = 48,476,653.75/10,119.79
  6. Step 6: Final answer
    x = 4,790.28

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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.