Home / 11,107.55-15,327.27-6,630.68

Finding the Fourth Proportional to 11,107.55, 15,327.27 and 6,630.68

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Solution

The fourth proportional to 11,107.55, 15,327.27 and 6,630.68 is: 9,149.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,107.55 : 15,327.27 = 6,630.68 : x
  2. Step 2: Convert to fraction form
    11,107.55/15,327.27 = 6,630.68/x
  3. Step 3: Cross multiply
    11,107.55x = 15,327.27 × 6,630.68
  4. Step 4: Simplify right side
    11,107.55x = 101,630,146.01
  5. Step 5: Solve for x
    x = 101,630,146.01/11,107.55
  6. Step 6: Final answer
    x = 9,149.65

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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.