Home / 8,247.24-11,378.34-5,447.88

Finding the Fourth Proportional to 8,247.24, 11,378.34 and 5,447.88

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Solution

The fourth proportional to 8,247.24, 11,378.34 and 5,447.88 is: 7,516.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,247.24 : 11,378.34 = 5,447.88 : x
  2. Step 2: Convert to fraction form
    8,247.24/11,378.34 = 5,447.88/x
  3. Step 3: Cross multiply
    8,247.24x = 11,378.34 × 5,447.88
  4. Step 4: Simplify right side
    8,247.24x = 61,987,830.92
  5. Step 5: Solve for x
    x = 61,987,830.92/8,247.24
  6. Step 6: Final answer
    x = 7,516.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.