Home / 11,988.56-17,986.32-4,967.28

Finding the Fourth Proportional to 11,988.56, 17,986.32 and 4,967.28

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Solution

The fourth proportional to 11,988.56, 17,986.32 and 4,967.28 is: 7,452.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.56 : 17,986.32 = 4,967.28 : x
  2. Step 2: Convert to fraction form
    11,988.56/17,986.32 = 4,967.28/x
  3. Step 3: Cross multiply
    11,988.56x = 17,986.32 × 4,967.28
  4. Step 4: Simplify right side
    11,988.56x = 89,343,087.61
  5. Step 5: Solve for x
    x = 89,343,087.61/11,988.56
  6. Step 6: Final answer
    x = 7,452.36

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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.