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Finding the Fourth Proportional to 6,287.70, 9,436.08 and 5,069.79

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Solution

The fourth proportional to 6,287.70, 9,436.08 and 5,069.79 is: 7,608.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,287.70 : 9,436.08 = 5,069.79 : x
  2. Step 2: Convert to fraction form
    6,287.70/9,436.08 = 5,069.79/x
  3. Step 3: Cross multiply
    6,287.70x = 9,436.08 × 5,069.79
  4. Step 4: Simplify right side
    6,287.70x = 47,838,944.02
  5. Step 5: Solve for x
    x = 47,838,944.02/6,287.70
  6. Step 6: Final answer
    x = 7,608.34

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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.