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Finding the Fourth Proportional to 6,711.89, 9,235.28 and 6,540.17

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Solution

The fourth proportional to 6,711.89, 9,235.28 and 6,540.17 is: 8,999.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,711.89 : 9,235.28 = 6,540.17 : x
  2. Step 2: Convert to fraction form
    6,711.89/9,235.28 = 6,540.17/x
  3. Step 3: Cross multiply
    6,711.89x = 9,235.28 × 6,540.17
  4. Step 4: Simplify right side
    6,711.89x = 60,400,271.37
  5. Step 5: Solve for x
    x = 60,400,271.37/6,711.89
  6. Step 6: Final answer
    x = 8,999.00

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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.