Home / 8,813.09-13,220.44-3,881.57

Finding the Fourth Proportional to 8,813.09, 13,220.44 and 3,881.57

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Solution

The fourth proportional to 8,813.09, 13,220.44 and 3,881.57 is: 5,822.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.09 : 13,220.44 = 3,881.57 : x
  2. Step 2: Convert to fraction form
    8,813.09/13,220.44 = 3,881.57/x
  3. Step 3: Cross multiply
    8,813.09x = 13,220.44 × 3,881.57
  4. Step 4: Simplify right side
    8,813.09x = 51,315,987.48
  5. Step 5: Solve for x
    x = 51,315,987.48/8,813.09
  6. Step 6: Final answer
    x = 5,822.70

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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.