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Finding the Fourth Proportional to 9,140.90, 12,610.09 and 5,953.05

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Solution

The fourth proportional to 9,140.90, 12,610.09 and 5,953.05 is: 8,212.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.90 : 12,610.09 = 5,953.05 : x
  2. Step 2: Convert to fraction form
    9,140.90/12,610.09 = 5,953.05/x
  3. Step 3: Cross multiply
    9,140.90x = 12,610.09 × 5,953.05
  4. Step 4: Simplify right side
    9,140.90x = 75,068,481.39
  5. Step 5: Solve for x
    x = 75,068,481.39/9,140.90
  6. Step 6: Final answer
    x = 8,212.37

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Similar ratio
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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.