Home / 11,979.50-17,947.98-6,426.95

Finding the Fourth Proportional to 11,979.50, 17,947.98 and 6,426.95

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Solution

The fourth proportional to 11,979.50, 17,947.98 and 6,426.95 is: 9,629.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.50 : 17,947.98 = 6,426.95 : x
  2. Step 2: Convert to fraction form
    11,979.50/17,947.98 = 6,426.95/x
  3. Step 3: Cross multiply
    11,979.50x = 17,947.98 × 6,426.95
  4. Step 4: Simplify right side
    11,979.50x = 115,350,680.32
  5. Step 5: Solve for x
    x = 115,350,680.32/11,979.50
  6. Step 6: Final answer
    x = 9,629.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.