Home / 8,220.25-11,353.67-5,563.05

Finding the Fourth Proportional to 8,220.25, 11,353.67 and 5,563.05

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Solution

The fourth proportional to 8,220.25, 11,353.67 and 5,563.05 is: 7,683.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.25 : 11,353.67 = 5,563.05 : x
  2. Step 2: Convert to fraction form
    8,220.25/11,353.67 = 5,563.05/x
  3. Step 3: Cross multiply
    8,220.25x = 11,353.67 × 5,563.05
  4. Step 4: Simplify right side
    8,220.25x = 63,161,033.89
  5. Step 5: Solve for x
    x = 63,161,033.89/8,220.25
  6. Step 6: Final answer
    x = 7,683.59

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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.