Home / 8,299.11-11,443.98-6,171.21

Finding the Fourth Proportional to 8,299.11, 11,443.98 and 6,171.21

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Solution

The fourth proportional to 8,299.11, 11,443.98 and 6,171.21 is: 8,509.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,299.11 : 11,443.98 = 6,171.21 : x
  2. Step 2: Convert to fraction form
    8,299.11/11,443.98 = 6,171.21/x
  3. Step 3: Cross multiply
    8,299.11x = 11,443.98 × 6,171.21
  4. Step 4: Simplify right side
    8,299.11x = 70,623,203.82
  5. Step 5: Solve for x
    x = 70,623,203.82/8,299.11
  6. Step 6: Final answer
    x = 8,509.73

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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.