Home / 8,220.60-11,352.72-5,237.82

Finding the Fourth Proportional to 8,220.60, 11,352.72 and 5,237.82

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Solution

The fourth proportional to 8,220.60, 11,352.72 and 5,237.82 is: 7,233.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.60 : 11,352.72 = 5,237.82 : x
  2. Step 2: Convert to fraction form
    8,220.60/11,352.72 = 5,237.82/x
  3. Step 3: Cross multiply
    8,220.60x = 11,352.72 × 5,237.82
  4. Step 4: Simplify right side
    8,220.60x = 59,463,503.87
  5. Step 5: Solve for x
    x = 59,463,503.87/8,220.60
  6. Step 6: Final answer
    x = 7,233.47

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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.