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Finding the Fourth Proportional to 6,739.70, 10,109.55 and 5,330.30

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Solution

The fourth proportional to 6,739.70, 10,109.55 and 5,330.30 is: 7,995.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,739.70 : 10,109.55 = 5,330.30 : x
  2. Step 2: Convert to fraction form
    6,739.70/10,109.55 = 5,330.30/x
  3. Step 3: Cross multiply
    6,739.70x = 10,109.55 × 5,330.30
  4. Step 4: Simplify right side
    6,739.70x = 53,886,934.37
  5. Step 5: Solve for x
    x = 53,886,934.37/6,739.70
  6. Step 6: Final answer
    x = 7,995.45

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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.