Home / 8,236.77-12,353.87-2,688.89

Finding the Fourth Proportional to 8,236.77, 12,353.87 and 2,688.89

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Solution

The fourth proportional to 8,236.77, 12,353.87 and 2,688.89 is: 4,032.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.77 : 12,353.87 = 2,688.89 : x
  2. Step 2: Convert to fraction form
    8,236.77/12,353.87 = 2,688.89/x
  3. Step 3: Cross multiply
    8,236.77x = 12,353.87 × 2,688.89
  4. Step 4: Simplify right side
    8,236.77x = 33,218,122.29
  5. Step 5: Solve for x
    x = 33,218,122.29/8,236.77
  6. Step 6: Final answer
    x = 4,032.91

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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.