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Finding the Fourth Proportional to 11,713.68, 17,575.20 and 7,042.56

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Solution

The fourth proportional to 11,713.68, 17,575.20 and 7,042.56 is: 10,566.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,713.68 : 17,575.20 = 7,042.56 : x
  2. Step 2: Convert to fraction form
    11,713.68/17,575.20 = 7,042.56/x
  3. Step 3: Cross multiply
    11,713.68x = 17,575.20 × 7,042.56
  4. Step 4: Simplify right side
    11,713.68x = 123,774,400.51
  5. Step 5: Solve for x
    x = 123,774,400.51/11,713.68
  6. Step 6: Final answer
    x = 10,566.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.