Home / 11,979.89-16,531.53-6,673.76

Finding the Fourth Proportional to 11,979.89, 16,531.53 and 6,673.76

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Solution

The fourth proportional to 11,979.89, 16,531.53 and 6,673.76 is: 9,209.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.89 : 16,531.53 = 6,673.76 : x
  2. Step 2: Convert to fraction form
    11,979.89/16,531.53 = 6,673.76/x
  3. Step 3: Cross multiply
    11,979.89x = 16,531.53 × 6,673.76
  4. Step 4: Simplify right side
    11,979.89x = 110,327,463.65
  5. Step 5: Solve for x
    x = 110,327,463.65/11,979.89
  6. Step 6: Final answer
    x = 9,209.39

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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.