Home / 8,118.72-12,177.06-3,440.60

Finding the Fourth Proportional to 8,118.72, 12,177.06 and 3,440.60

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Solution

The fourth proportional to 8,118.72, 12,177.06 and 3,440.60 is: 5,160.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.72 : 12,177.06 = 3,440.60 : x
  2. Step 2: Convert to fraction form
    8,118.72/12,177.06 = 3,440.60/x
  3. Step 3: Cross multiply
    8,118.72x = 12,177.06 × 3,440.60
  4. Step 4: Simplify right side
    8,118.72x = 41,896,331.75
  5. Step 5: Solve for x
    x = 41,896,331.75/8,118.72
  6. Step 6: Final answer
    x = 5,160.46

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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.