Home / 8,522.05-12,780.73-5,397.37

Finding the Fourth Proportional to 8,522.05, 12,780.73 and 5,397.37

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Solution

The fourth proportional to 8,522.05, 12,780.73 and 5,397.37 is: 8,094.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,522.05 : 12,780.73 = 5,397.37 : x
  2. Step 2: Convert to fraction form
    8,522.05/12,780.73 = 5,397.37/x
  3. Step 3: Cross multiply
    8,522.05x = 12,780.73 × 5,397.37
  4. Step 4: Simplify right side
    8,522.05x = 68,982,328.68
  5. Step 5: Solve for x
    x = 68,982,328.68/8,522.05
  6. Step 6: Final answer
    x = 8,094.57

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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.