Home / 8,261.90-11,393.60-5,424.26

Finding the Fourth Proportional to 8,261.90, 11,393.60 and 5,424.26

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Solution

The fourth proportional to 8,261.90, 11,393.60 and 5,424.26 is: 7,480.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.90 : 11,393.60 = 5,424.26 : x
  2. Step 2: Convert to fraction form
    8,261.90/11,393.60 = 5,424.26/x
  3. Step 3: Cross multiply
    8,261.90x = 11,393.60 × 5,424.26
  4. Step 4: Simplify right side
    8,261.90x = 61,801,821.61
  5. Step 5: Solve for x
    x = 61,801,821.61/8,261.90
  6. Step 6: Final answer
    x = 7,480.34

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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.