Home / 11,310.05-15,613.22-7,539.50

Finding the Fourth Proportional to 11,310.05, 15,613.22 and 7,539.50

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Solution

The fourth proportional to 11,310.05, 15,613.22 and 7,539.50 is: 10,408.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,310.05 : 15,613.22 = 7,539.50 : x
  2. Step 2: Convert to fraction form
    11,310.05/15,613.22 = 7,539.50/x
  3. Step 3: Cross multiply
    11,310.05x = 15,613.22 × 7,539.50
  4. Step 4: Simplify right side
    11,310.05x = 117,715,872.19
  5. Step 5: Solve for x
    x = 117,715,872.19/11,310.05
  6. Step 6: Final answer
    x = 10,408.08

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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.