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Finding the Fourth Proportional to 6,999.55, 9,658.81 and 4,346.45

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Solution

The fourth proportional to 6,999.55, 9,658.81 and 4,346.45 is: 5,997.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999.55 : 9,658.81 = 4,346.45 : x
  2. Step 2: Convert to fraction form
    6,999.55/9,658.81 = 4,346.45/x
  3. Step 3: Cross multiply
    6,999.55x = 9,658.81 × 4,346.45
  4. Step 4: Simplify right side
    6,999.55x = 41,981,534.72
  5. Step 5: Solve for x
    x = 41,981,534.72/6,999.55
  6. Step 6: Final answer
    x = 5,997.75

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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.