Home / 8,420.58-11,616.66-5,061.44

Finding the Fourth Proportional to 8,420.58, 11,616.66 and 5,061.44

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Solution

The fourth proportional to 8,420.58, 11,616.66 and 5,061.44 is: 6,982.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420.58 : 11,616.66 = 5,061.44 : x
  2. Step 2: Convert to fraction form
    8,420.58/11,616.66 = 5,061.44/x
  3. Step 3: Cross multiply
    8,420.58x = 11,616.66 × 5,061.44
  4. Step 4: Simplify right side
    8,420.58x = 58,797,027.59
  5. Step 5: Solve for x
    x = 58,797,027.59/8,420.58
  6. Step 6: Final answer
    x = 6,982.54

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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.