Home / 11,702.68-16,148.84-6,666.72

Finding the Fourth Proportional to 11,702.68, 16,148.84 and 6,666.72

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Solution

The fourth proportional to 11,702.68, 16,148.84 and 6,666.72 is: 9,199.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,702.68 : 16,148.84 = 6,666.72 : x
  2. Step 2: Convert to fraction form
    11,702.68/16,148.84 = 6,666.72/x
  3. Step 3: Cross multiply
    11,702.68x = 16,148.84 × 6,666.72
  4. Step 4: Simplify right side
    11,702.68x = 107,659,794.60
  5. Step 5: Solve for x
    x = 107,659,794.60/11,702.68
  6. Step 6: Final answer
    x = 9,199.58

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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.