Home / 11,310.21-15,613.46-7,539.66

Finding the Fourth Proportional to 11,310.21, 15,613.46 and 7,539.66

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Solution

The fourth proportional to 11,310.21, 15,613.46 and 7,539.66 is: 10,408.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,310.21 : 15,613.46 = 7,539.66 : x
  2. Step 2: Convert to fraction form
    11,310.21/15,613.46 = 7,539.66/x
  3. Step 3: Cross multiply
    11,310.21x = 15,613.46 × 7,539.66
  4. Step 4: Simplify right side
    11,310.21x = 117,720,142.13
  5. Step 5: Solve for x
    x = 117,720,142.13/11,310.21
  6. Step 6: Final answer
    x = 10,408.31

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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.