Home / 11,818.08-16,293.72-9,685.68

Finding the Fourth Proportional to 11,818.08, 16,293.72 and 9,685.68

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Solution

The fourth proportional to 11,818.08, 16,293.72 and 9,685.68 is: 13,353.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.08 : 16,293.72 = 9,685.68 : x
  2. Step 2: Convert to fraction form
    11,818.08/16,293.72 = 9,685.68/x
  3. Step 3: Cross multiply
    11,818.08x = 16,293.72 × 9,685.68
  4. Step 4: Simplify right side
    11,818.08x = 157,815,757.93
  5. Step 5: Solve for x
    x = 157,815,757.93/11,818.08
  6. Step 6: Final answer
    x = 13,353.76

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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.