Home / 11,712.56-17,569.08-3,393.20

Finding the Fourth Proportional to 11,712.56, 17,569.08 and 3,393.20

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Solution

The fourth proportional to 11,712.56, 17,569.08 and 3,393.20 is: 5,089.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,712.56 : 17,569.08 = 3,393.20 : x
  2. Step 2: Convert to fraction form
    11,712.56/17,569.08 = 3,393.20/x
  3. Step 3: Cross multiply
    11,712.56x = 17,569.08 × 3,393.20
  4. Step 4: Simplify right side
    11,712.56x = 59,615,402.26
  5. Step 5: Solve for x
    x = 59,615,402.26/11,712.56
  6. Step 6: Final answer
    x = 5,089.87

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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.