Home / 8,810.87-12,161.29-5,451.73

Finding the Fourth Proportional to 8,810.87, 12,161.29 and 5,451.73

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Solution

The fourth proportional to 8,810.87, 12,161.29 and 5,451.73 is: 7,524.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,810.87 : 12,161.29 = 5,451.73 : x
  2. Step 2: Convert to fraction form
    8,810.87/12,161.29 = 5,451.73/x
  3. Step 3: Cross multiply
    8,810.87x = 12,161.29 × 5,451.73
  4. Step 4: Simplify right side
    8,810.87x = 66,300,069.53
  5. Step 5: Solve for x
    x = 66,300,069.53/8,810.87
  6. Step 6: Final answer
    x = 7,524.80

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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.