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Finding the Fourth Proportional to 6,759.84, 9,335.02 and 6,391.70

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Solution

The fourth proportional to 6,759.84, 9,335.02 and 6,391.70 is: 8,826.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,759.84 : 9,335.02 = 6,391.70 : x
  2. Step 2: Convert to fraction form
    6,759.84/9,335.02 = 6,391.70/x
  3. Step 3: Cross multiply
    6,759.84x = 9,335.02 × 6,391.70
  4. Step 4: Simplify right side
    6,759.84x = 59,666,647.33
  5. Step 5: Solve for x
    x = 59,666,647.33/6,759.84
  6. Step 6: Final answer
    x = 8,826.64

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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.