Home / 11,579.04-15,981.12-6,865.92

Finding the Fourth Proportional to 11,579.04, 15,981.12 and 6,865.92

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Solution

The fourth proportional to 11,579.04, 15,981.12 and 6,865.92 is: 9,476.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,579.04 : 15,981.12 = 6,865.92 : x
  2. Step 2: Convert to fraction form
    11,579.04/15,981.12 = 6,865.92/x
  3. Step 3: Cross multiply
    11,579.04x = 15,981.12 × 6,865.92
  4. Step 4: Simplify right side
    11,579.04x = 109,725,091.43
  5. Step 5: Solve for x
    x = 109,725,091.43/11,579.04
  6. Step 6: Final answer
    x = 9,476.18

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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.