Home / 8,809.72-13,189.20-5,851.12

Finding the Fourth Proportional to 8,809.72, 13,189.20 and 5,851.12

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Solution

The fourth proportional to 8,809.72, 13,189.20 and 5,851.12 is: 8,759.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.72 : 13,189.20 = 5,851.12 : x
  2. Step 2: Convert to fraction form
    8,809.72/13,189.20 = 5,851.12/x
  3. Step 3: Cross multiply
    8,809.72x = 13,189.20 × 5,851.12
  4. Step 4: Simplify right side
    8,809.72x = 77,171,666.73
  5. Step 5: Solve for x
    x = 77,171,666.73/8,809.72
  6. Step 6: Final answer
    x = 8,759.83

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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.