Home / 11,685.14-16,125.90-6,650.12

Finding the Fourth Proportional to 11,685.14, 16,125.90 and 6,650.12

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Solution

The fourth proportional to 11,685.14, 16,125.90 and 6,650.12 is: 9,177.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,685.14 : 16,125.90 = 6,650.12 : x
  2. Step 2: Convert to fraction form
    11,685.14/16,125.90 = 6,650.12/x
  3. Step 3: Cross multiply
    11,685.14x = 16,125.90 × 6,650.12
  4. Step 4: Simplify right side
    11,685.14x = 107,239,170.11
  5. Step 5: Solve for x
    x = 107,239,170.11/11,685.14
  6. Step 6: Final answer
    x = 9,177.40

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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.