Home / 11,947.56-16,486.38-6,641.52

Finding the Fourth Proportional to 11,947.56, 16,486.38 and 6,641.52

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Solution

The fourth proportional to 11,947.56, 16,486.38 and 6,641.52 is: 9,164.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,947.56 : 16,486.38 = 6,641.52 : x
  2. Step 2: Convert to fraction form
    11,947.56/16,486.38 = 6,641.52/x
  3. Step 3: Cross multiply
    11,947.56x = 16,486.38 × 6,641.52
  4. Step 4: Simplify right side
    11,947.56x = 109,494,622.50
  5. Step 5: Solve for x
    x = 109,494,622.50/11,947.56
  6. Step 6: Final answer
    x = 9,164.60

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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.