Home / 26,121.84-39,174.48-8,587.60

Finding the Fourth Proportional to 26,121.84, 39,174.48 and 8,587.60

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Solution

The fourth proportional to 26,121.84, 39,174.48 and 8,587.60 is: 12,878.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,121.84 : 39,174.48 = 8,587.60 : x
  2. Step 2: Convert to fraction form
    26,121.84/39,174.48 = 8,587.60/x
  3. Step 3: Cross multiply
    26,121.84x = 39,174.48 × 8,587.60
  4. Step 4: Simplify right side
    26,121.84x = 336,414,764.45
  5. Step 5: Solve for x
    x = 336,414,764.45/26,121.84
  6. Step 6: Final answer
    x = 12,878.68

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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.