Home / 11,402.66-15,744.57-8,745.86

Finding the Fourth Proportional to 11,402.66, 15,744.57 and 8,745.86

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Solution

The fourth proportional to 11,402.66, 15,744.57 and 8,745.86 is: 12,076.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,402.66 : 15,744.57 = 8,745.86 : x
  2. Step 2: Convert to fraction form
    11,402.66/15,744.57 = 8,745.86/x
  3. Step 3: Cross multiply
    11,402.66x = 15,744.57 × 8,745.86
  4. Step 4: Simplify right side
    11,402.66x = 137,699,804.98
  5. Step 5: Solve for x
    x = 137,699,804.98/11,402.66
  6. Step 6: Final answer
    x = 12,076.11

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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.