Home / 11,983.17-17,972.28-3,216

Finding the Fourth Proportional to 11,983.17, 17,972.28 and 3,216

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Solution

The fourth proportional to 11,983.17, 17,972.28 and 3,216 is: 4,823.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,983.17 : 17,972.28 = 3,216 : x
  2. Step 2: Convert to fraction form
    11,983.17/17,972.28 = 3,216/x
  3. Step 3: Cross multiply
    11,983.17x = 17,972.28 × 3,216
  4. Step 4: Simplify right side
    11,983.17x = 57,798,852.48
  5. Step 5: Solve for x
    x = 57,798,852.48/11,983.17
  6. Step 6: Final answer
    x = 4,823.34

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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.