Home / 11,979.56-16,531.81-6,674.40

Finding the Fourth Proportional to 11,979.56, 16,531.81 and 6,674.40

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Solution

The fourth proportional to 11,979.56, 16,531.81 and 6,674.40 is: 9,210.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.56 : 16,531.81 = 6,674.40 : x
  2. Step 2: Convert to fraction form
    11,979.56/16,531.81 = 6,674.40/x
  3. Step 3: Cross multiply
    11,979.56x = 16,531.81 × 6,674.40
  4. Step 4: Simplify right side
    11,979.56x = 110,339,895.98
  5. Step 5: Solve for x
    x = 110,339,895.98/11,979.56
  6. Step 6: Final answer
    x = 9,210.68

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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.