Home / 11,979.15-16,531.53-6,674.07

Finding the Fourth Proportional to 11,979.15, 16,531.53 and 6,674.07

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Solution

The fourth proportional to 11,979.15, 16,531.53 and 6,674.07 is: 9,210.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.15 : 16,531.53 = 6,674.07 : x
  2. Step 2: Convert to fraction form
    11,979.15/16,531.53 = 6,674.07/x
  3. Step 3: Cross multiply
    11,979.15x = 16,531.53 × 6,674.07
  4. Step 4: Simplify right side
    11,979.15x = 110,332,588.43
  5. Step 5: Solve for x
    x = 110,332,588.43/11,979.15
  6. Step 6: Final answer
    x = 9,210.39

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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.