Home / 11,289.97-16,928.79-8,964.91

Finding the Fourth Proportional to 11,289.97, 16,928.79 and 8,964.91

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Solution

The fourth proportional to 11,289.97, 16,928.79 and 8,964.91 is: 13,442.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,289.97 : 16,928.79 = 8,964.91 : x
  2. Step 2: Convert to fraction form
    11,289.97/16,928.79 = 8,964.91/x
  3. Step 3: Cross multiply
    11,289.97x = 16,928.79 × 8,964.91
  4. Step 4: Simplify right side
    11,289.97x = 151,765,066.30
  5. Step 5: Solve for x
    x = 151,765,066.30/11,289.97
  6. Step 6: Final answer
    x = 13,442.47

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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.