Home / 11,947.26-16,487.10-6,641.94

Finding the Fourth Proportional to 11,947.26, 16,487.10 and 6,641.94

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Solution

The fourth proportional to 11,947.26, 16,487.10 and 6,641.94 is: 9,165.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,947.26 : 16,487.10 = 6,641.94 : x
  2. Step 2: Convert to fraction form
    11,947.26/16,487.10 = 6,641.94/x
  3. Step 3: Cross multiply
    11,947.26x = 16,487.10 × 6,641.94
  4. Step 4: Simplify right side
    11,947.26x = 109,506,328.97
  5. Step 5: Solve for x
    x = 109,506,328.97/11,947.26
  6. Step 6: Final answer
    x = 9,165.81

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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.