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Finding the Fourth Proportional to 8,693.78, 13,040.52 and 8,016.57

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Solution

The fourth proportional to 8,693.78, 13,040.52 and 8,016.57 is: 12,024.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693.78 : 13,040.52 = 8,016.57 : x
  2. Step 2: Convert to fraction form
    8,693.78/13,040.52 = 8,016.57/x
  3. Step 3: Cross multiply
    8,693.78x = 13,040.52 × 8,016.57
  4. Step 4: Simplify right side
    8,693.78x = 104,540,233.90
  5. Step 5: Solve for x
    x = 104,540,233.90/8,693.78
  6. Step 6: Final answer
    x = 12,024.71

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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.