Home / 10,964.90-16,449.80-5,118.32

Finding the Fourth Proportional to 10,964.90, 16,449.80 and 5,118.32

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Solution

The fourth proportional to 10,964.90, 16,449.80 and 5,118.32 is: 7,678.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,964.90 : 16,449.80 = 5,118.32 : x
  2. Step 2: Convert to fraction form
    10,964.90/16,449.80 = 5,118.32/x
  3. Step 3: Cross multiply
    10,964.90x = 16,449.80 × 5,118.32
  4. Step 4: Simplify right side
    10,964.90x = 84,195,340.34
  5. Step 5: Solve for x
    x = 84,195,340.34/10,964.90
  6. Step 6: Final answer
    x = 7,678.62

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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.