Home / 7,523.86-11,287.68-3,139.06

Finding the Fourth Proportional to 7,523.86, 11,287.68 and 3,139.06

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Solution

The fourth proportional to 7,523.86, 11,287.68 and 3,139.06 is: 4,709.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,523.86 : 11,287.68 = 3,139.06 : x
  2. Step 2: Convert to fraction form
    7,523.86/11,287.68 = 3,139.06/x
  3. Step 3: Cross multiply
    7,523.86x = 11,287.68 × 3,139.06
  4. Step 4: Simplify right side
    7,523.86x = 35,432,704.78
  5. Step 5: Solve for x
    x = 35,432,704.78/7,523.86
  6. Step 6: Final answer
    x = 4,709.38

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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.