Home / 11,947.74-16,487.37-6,911.70

Finding the Fourth Proportional to 11,947.74, 16,487.37 and 6,911.70

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Solution

The fourth proportional to 11,947.74, 16,487.37 and 6,911.70 is: 9,537.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,947.74 : 16,487.37 = 6,911.70 : x
  2. Step 2: Convert to fraction form
    11,947.74/16,487.37 = 6,911.70/x
  3. Step 3: Cross multiply
    11,947.74x = 16,487.37 × 6,911.70
  4. Step 4: Simplify right side
    11,947.74x = 113,955,755.23
  5. Step 5: Solve for x
    x = 113,955,755.23/11,947.74
  6. Step 6: Final answer
    x = 9,537.85

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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.