Home / 10,514.60-15,771.95-3,119.12

Finding the Fourth Proportional to 10,514.60, 15,771.95 and 3,119.12

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Solution

The fourth proportional to 10,514.60, 15,771.95 and 3,119.12 is: 4,678.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,514.60 : 15,771.95 = 3,119.12 : x
  2. Step 2: Convert to fraction form
    10,514.60/15,771.95 = 3,119.12/x
  3. Step 3: Cross multiply
    10,514.60x = 15,771.95 × 3,119.12
  4. Step 4: Simplify right side
    10,514.60x = 49,194,604.68
  5. Step 5: Solve for x
    x = 49,194,604.68/10,514.60
  6. Step 6: Final answer
    x = 4,678.69

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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.