Home / 11,723.11-17,587.70-8,639.84

Finding the Fourth Proportional to 11,723.11, 17,587.70 and 8,639.84

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Solution

The fourth proportional to 11,723.11, 17,587.70 and 8,639.84 is: 12,962.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,723.11 : 17,587.70 = 8,639.84 : x
  2. Step 2: Convert to fraction form
    11,723.11/17,587.70 = 8,639.84/x
  3. Step 3: Cross multiply
    11,723.11x = 17,587.70 × 8,639.84
  4. Step 4: Simplify right side
    11,723.11x = 151,954,913.97
  5. Step 5: Solve for x
    x = 151,954,913.97/11,723.11
  6. Step 6: Final answer
    x = 12,962.00

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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.