Home / 12,017.92-16,581.90-6,979.08

Finding the Fourth Proportional to 12,017.92, 16,581.90 and 6,979.08

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Solution

The fourth proportional to 12,017.92, 16,581.90 and 6,979.08 is: 9,629.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,017.92 : 16,581.90 = 6,979.08 : x
  2. Step 2: Convert to fraction form
    12,017.92/16,581.90 = 6,979.08/x
  3. Step 3: Cross multiply
    12,017.92x = 16,581.90 × 6,979.08
  4. Step 4: Simplify right side
    12,017.92x = 115,726,406.65
  5. Step 5: Solve for x
    x = 115,726,406.65/12,017.92
  6. Step 6: Final answer
    x = 9,629.49

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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.