Home / 10,514.28-15,771.38-3,494.84

Finding the Fourth Proportional to 10,514.28, 15,771.38 and 3,494.84

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Solution

The fourth proportional to 10,514.28, 15,771.38 and 3,494.84 is: 5,242.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,514.28 : 15,771.38 = 3,494.84 : x
  2. Step 2: Convert to fraction form
    10,514.28/15,771.38 = 3,494.84/x
  3. Step 3: Cross multiply
    10,514.28x = 15,771.38 × 3,494.84
  4. Step 4: Simplify right side
    10,514.28x = 55,118,449.68
  5. Step 5: Solve for x
    x = 55,118,449.68/10,514.28
  6. Step 6: Final answer
    x = 5,242.25

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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.