Home / 11,947.12-16,479.39-7,703.62

Finding the Fourth Proportional to 11,947.12, 16,479.39 and 7,703.62

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Solution

The fourth proportional to 11,947.12, 16,479.39 and 7,703.62 is: 10,626.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,947.12 : 16,479.39 = 7,703.62 : x
  2. Step 2: Convert to fraction form
    11,947.12/16,479.39 = 7,703.62/x
  3. Step 3: Cross multiply
    11,947.12x = 16,479.39 × 7,703.62
  4. Step 4: Simplify right side
    11,947.12x = 126,950,958.39
  5. Step 5: Solve for x
    x = 126,950,958.39/11,947.12
  6. Step 6: Final answer
    x = 10,626.07

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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.