Home / 8,522.20-11,762.70-5,689.72

Finding the Fourth Proportional to 8,522.20, 11,762.70 and 5,689.72

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Solution

The fourth proportional to 8,522.20, 11,762.70 and 5,689.72 is: 7,853.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,522.20 : 11,762.70 = 5,689.72 : x
  2. Step 2: Convert to fraction form
    8,522.20/11,762.70 = 5,689.72/x
  3. Step 3: Cross multiply
    8,522.20x = 11,762.70 × 5,689.72
  4. Step 4: Simplify right side
    8,522.20x = 66,926,469.44
  5. Step 5: Solve for x
    x = 66,926,469.44/8,522.20
  6. Step 6: Final answer
    x = 7,853.19

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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.