Home / 11,966.26-16,511.78-6,660.34

Finding the Fourth Proportional to 11,966.26, 16,511.78 and 6,660.34

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Solution

The fourth proportional to 11,966.26, 16,511.78 and 6,660.34 is: 9,190.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,966.26 : 16,511.78 = 6,660.34 : x
  2. Step 2: Convert to fraction form
    11,966.26/16,511.78 = 6,660.34/x
  3. Step 3: Cross multiply
    11,966.26x = 16,511.78 × 6,660.34
  4. Step 4: Simplify right side
    11,966.26x = 109,974,068.81
  5. Step 5: Solve for x
    x = 109,974,068.81/11,966.26
  6. Step 6: Final answer
    x = 9,190.35

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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.