Home / 11,276.69-15,564.96-6,561.88

Finding the Fourth Proportional to 11,276.69, 15,564.96 and 6,561.88

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Solution

The fourth proportional to 11,276.69, 15,564.96 and 6,561.88 is: 9,057.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,276.69 : 15,564.96 = 6,561.88 : x
  2. Step 2: Convert to fraction form
    11,276.69/15,564.96 = 6,561.88/x
  3. Step 3: Cross multiply
    11,276.69x = 15,564.96 × 6,561.88
  4. Step 4: Simplify right side
    11,276.69x = 102,135,360.81
  5. Step 5: Solve for x
    x = 102,135,360.81/11,276.69
  6. Step 6: Final answer
    x = 9,057.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.