Home / 6,722.23-10,081.99-6,388.80

Finding the Fourth Proportional to 6,722.23, 10,081.99 and 6,388.80

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Solution

The fourth proportional to 6,722.23, 10,081.99 and 6,388.80 is: 9,581.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,722.23 : 10,081.99 = 6,388.80 : x
  2. Step 2: Convert to fraction form
    6,722.23/10,081.99 = 6,388.80/x
  3. Step 3: Cross multiply
    6,722.23x = 10,081.99 × 6,388.80
  4. Step 4: Simplify right side
    6,722.23x = 64,411,817.71
  5. Step 5: Solve for x
    x = 64,411,817.71/6,722.23
  6. Step 6: Final answer
    x = 9,581.91

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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.