Home / 11,702.28-16,146.89-6,666.39

Finding the Fourth Proportional to 11,702.28, 16,146.89 and 6,666.39

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Solution

The fourth proportional to 11,702.28, 16,146.89 and 6,666.39 is: 9,198.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,702.28 : 16,146.89 = 6,666.39 : x
  2. Step 2: Convert to fraction form
    11,702.28/16,146.89 = 6,666.39/x
  3. Step 3: Cross multiply
    11,702.28x = 16,146.89 × 6,666.39
  4. Step 4: Simplify right side
    11,702.28x = 107,641,466.03
  5. Step 5: Solve for x
    x = 107,641,466.03/11,702.28
  6. Step 6: Final answer
    x = 9,198.33

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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.