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Finding the Fourth Proportional to 8,353.06, 11,500.99 and 7,091.49

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Solution

The fourth proportional to 8,353.06, 11,500.99 and 7,091.49 is: 9,763.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,353.06 : 11,500.99 = 7,091.49 : x
  2. Step 2: Convert to fraction form
    8,353.06/11,500.99 = 7,091.49/x
  3. Step 3: Cross multiply
    8,353.06x = 11,500.99 × 7,091.49
  4. Step 4: Simplify right side
    8,353.06x = 81,559,155.58
  5. Step 5: Solve for x
    x = 81,559,155.58/8,353.06
  6. Step 6: Final answer
    x = 9,763.99

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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.