Home / 10,514.38-15,771.56-4,277.78

Finding the Fourth Proportional to 10,514.38, 15,771.56 and 4,277.78

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Solution

The fourth proportional to 10,514.38, 15,771.56 and 4,277.78 is: 6,416.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,514.38 : 15,771.56 = 4,277.78 : x
  2. Step 2: Convert to fraction form
    10,514.38/15,771.56 = 4,277.78/x
  3. Step 3: Cross multiply
    10,514.38x = 15,771.56 × 4,277.78
  4. Step 4: Simplify right side
    10,514.38x = 67,467,263.94
  5. Step 5: Solve for x
    x = 67,467,263.94/10,514.38
  6. Step 6: Final answer
    x = 6,416.67

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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.