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Finding the Fourth Proportional to 8,352.84, 11,500.62 and 7,091.40

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Solution

The fourth proportional to 8,352.84, 11,500.62 and 7,091.40 is: 9,763.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,352.84 : 11,500.62 = 7,091.40 : x
  2. Step 2: Convert to fraction form
    8,352.84/11,500.62 = 7,091.40/x
  3. Step 3: Cross multiply
    8,352.84x = 11,500.62 × 7,091.40
  4. Step 4: Simplify right side
    8,352.84x = 81,555,496.67
  5. Step 5: Solve for x
    x = 81,555,496.67/8,352.84
  6. Step 6: Final answer
    x = 9,763.80

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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.