Home / 8,279.16-11,422.46-5,621.96

Finding the Fourth Proportional to 8,279.16, 11,422.46 and 5,621.96

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Solution

The fourth proportional to 8,279.16, 11,422.46 and 5,621.96 is: 7,756.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.16 : 11,422.46 = 5,621.96 : x
  2. Step 2: Convert to fraction form
    8,279.16/11,422.46 = 5,621.96/x
  3. Step 3: Cross multiply
    8,279.16x = 11,422.46 × 5,621.96
  4. Step 4: Simplify right side
    8,279.16x = 64,216,528.00
  5. Step 5: Solve for x
    x = 64,216,528.00/8,279.16
  6. Step 6: Final answer
    x = 7,756.41

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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.