Home / 7,656.72-11,483.19-2,109.81

Finding the Fourth Proportional to 7,656.72, 11,483.19 and 2,109.81

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Solution

The fourth proportional to 7,656.72, 11,483.19 and 2,109.81 is: 3,164.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,656.72 : 11,483.19 = 2,109.81 : x
  2. Step 2: Convert to fraction form
    7,656.72/11,483.19 = 2,109.81/x
  3. Step 3: Cross multiply
    7,656.72x = 11,483.19 × 2,109.81
  4. Step 4: Simplify right side
    7,656.72x = 24,227,349.09
  5. Step 5: Solve for x
    x = 24,227,349.09/7,656.72
  6. Step 6: Final answer
    x = 3,164.19

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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.