Home / 9,786.48-14,678.01-3,211.80

Finding the Fourth Proportional to 9,786.48, 14,678.01 and 3,211.80

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Solution

The fourth proportional to 9,786.48, 14,678.01 and 3,211.80 is: 4,817.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,786.48 : 14,678.01 = 3,211.80 : x
  2. Step 2: Convert to fraction form
    9,786.48/14,678.01 = 3,211.80/x
  3. Step 3: Cross multiply
    9,786.48x = 14,678.01 × 3,211.80
  4. Step 4: Simplify right side
    9,786.48x = 47,142,832.52
  5. Step 5: Solve for x
    x = 47,142,832.52/9,786.48
  6. Step 6: Final answer
    x = 4,817.14

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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.