Home / 11,111.76-15,328.44-6,634.08

Finding the Fourth Proportional to 11,111.76, 15,328.44 and 6,634.08

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Solution

The fourth proportional to 11,111.76, 15,328.44 and 6,634.08 is: 9,151.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,111.76 : 15,328.44 = 6,634.08 : x
  2. Step 2: Convert to fraction form
    11,111.76/15,328.44 = 6,634.08/x
  3. Step 3: Cross multiply
    11,111.76x = 15,328.44 × 6,634.08
  4. Step 4: Simplify right side
    11,111.76x = 101,690,097.24
  5. Step 5: Solve for x
    x = 101,690,097.24/11,111.76
  6. Step 6: Final answer
    x = 9,151.57

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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.