Home / 11,579.17-15,979.15-6,543.30

Finding the Fourth Proportional to 11,579.17, 15,979.15 and 6,543.30

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Solution

The fourth proportional to 11,579.17, 15,979.15 and 6,543.30 is: 9,029.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,579.17 : 15,979.15 = 6,543.30 : x
  2. Step 2: Convert to fraction form
    11,579.17/15,979.15 = 6,543.30/x
  3. Step 3: Cross multiply
    11,579.17x = 15,979.15 × 6,543.30
  4. Step 4: Simplify right side
    11,579.17x = 104,556,372.20
  5. Step 5: Solve for x
    x = 104,556,372.20/11,579.17
  6. Step 6: Final answer
    x = 9,029.69

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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.