Home / 11,979.62-16,531.89-6,675.48

Finding the Fourth Proportional to 11,979.62, 16,531.89 and 6,675.48

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Solution

The fourth proportional to 11,979.62, 16,531.89 and 6,675.48 is: 9,212.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.62 : 16,531.89 = 6,675.48 : x
  2. Step 2: Convert to fraction form
    11,979.62/16,531.89 = 6,675.48/x
  3. Step 3: Cross multiply
    11,979.62x = 16,531.89 × 6,675.48
  4. Step 4: Simplify right side
    11,979.62x = 110,358,301.06
  5. Step 5: Solve for x
    x = 110,358,301.06/11,979.62
  6. Step 6: Final answer
    x = 9,212.17

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1.5x scale

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.