Home / 11,947.50-16,486.90-6,641.94

Finding the Fourth Proportional to 11,947.50, 16,486.90 and 6,641.94

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Solution

The fourth proportional to 11,947.50, 16,486.90 and 6,641.94 is: 9,165.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,947.50 : 16,486.90 = 6,641.94 : x
  2. Step 2: Convert to fraction form
    11,947.50/16,486.90 = 6,641.94/x
  3. Step 3: Cross multiply
    11,947.50x = 16,486.90 × 6,641.94
  4. Step 4: Simplify right side
    11,947.50x = 109,505,000.59
  5. Step 5: Solve for x
    x = 109,505,000.59/11,947.50
  6. Step 6: Final answer
    x = 9,165.52

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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.