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Finding the Fourth Proportional to 6,135.70, 9,203.55 and 5,406.70

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Solution

The fourth proportional to 6,135.70, 9,203.55 and 5,406.70 is: 8,110.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,135.70 : 9,203.55 = 5,406.70 : x
  2. Step 2: Convert to fraction form
    6,135.70/9,203.55 = 5,406.70/x
  3. Step 3: Cross multiply
    6,135.70x = 9,203.55 × 5,406.70
  4. Step 4: Simplify right side
    6,135.70x = 49,760,833.79
  5. Step 5: Solve for x
    x = 49,760,833.79/6,135.70
  6. Step 6: Final answer
    x = 8,110.05

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.