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Finding the Fourth Proportional to 8,230.68, 11,358 and 4,693.20

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Solution

The fourth proportional to 8,230.68, 11,358 and 4,693.20 is: 6,476.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,230.68 : 11,358 = 4,693.20 : x
  2. Step 2: Convert to fraction form
    8,230.68/11,358 = 4,693.20/x
  3. Step 3: Cross multiply
    8,230.68x = 11,358 × 4,693.20
  4. Step 4: Simplify right side
    8,230.68x = 53,305,365.60
  5. Step 5: Solve for x
    x = 53,305,365.60/8,230.68
  6. Step 6: Final answer
    x = 6,476.42

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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.