Home / 8,811.98-12,161.09-5,822.57

Finding the Fourth Proportional to 8,811.98, 12,161.09 and 5,822.57

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Solution

The fourth proportional to 8,811.98, 12,161.09 and 5,822.57 is: 8,035.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.98 : 12,161.09 = 5,822.57 : x
  2. Step 2: Convert to fraction form
    8,811.98/12,161.09 = 5,822.57/x
  3. Step 3: Cross multiply
    8,811.98x = 12,161.09 × 5,822.57
  4. Step 4: Simplify right side
    8,811.98x = 70,808,797.80
  5. Step 5: Solve for x
    x = 70,808,797.80/8,811.98
  6. Step 6: Final answer
    x = 8,035.52

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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.