Home / 10,890.44-16,335.66-8,713.01

Finding the Fourth Proportional to 10,890.44, 16,335.66 and 8,713.01

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Solution

The fourth proportional to 10,890.44, 16,335.66 and 8,713.01 is: 13,069.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890.44 : 16,335.66 = 8,713.01 : x
  2. Step 2: Convert to fraction form
    10,890.44/16,335.66 = 8,713.01/x
  3. Step 3: Cross multiply
    10,890.44x = 16,335.66 × 8,713.01
  4. Step 4: Simplify right side
    10,890.44x = 142,332,768.94
  5. Step 5: Solve for x
    x = 142,332,768.94/10,890.44
  6. Step 6: Final answer
    x = 13,069.52

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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.