Home / 11,946.45-16,486.61-6,641.26

Finding the Fourth Proportional to 11,946.45, 16,486.61 and 6,641.26

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Solution

The fourth proportional to 11,946.45, 16,486.61 and 6,641.26 is: 9,165.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,946.45 : 16,486.61 = 6,641.26 : x
  2. Step 2: Convert to fraction form
    11,946.45/16,486.61 = 6,641.26/x
  3. Step 3: Cross multiply
    11,946.45x = 16,486.61 × 6,641.26
  4. Step 4: Simplify right side
    11,946.45x = 109,491,789.11
  5. Step 5: Solve for x
    x = 109,491,789.11/11,946.45
  6. Step 6: Final answer
    x = 9,165.21

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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.