Home / 7,853.36-11,777.00-3,172.16

Finding the Fourth Proportional to 7,853.36, 11,777.00 and 3,172.16

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Solution

The fourth proportional to 7,853.36, 11,777.00 and 3,172.16 is: 4,757.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,853.36 : 11,777.00 = 3,172.16 : x
  2. Step 2: Convert to fraction form
    7,853.36/11,777.00 = 3,172.16/x
  3. Step 3: Cross multiply
    7,853.36x = 11,777.00 × 3,172.16
  4. Step 4: Simplify right side
    7,853.36x = 37,358,541.90
  5. Step 5: Solve for x
    x = 37,358,541.90/7,853.36
  6. Step 6: Final answer
    x = 4,757.02

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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.