Home / 11,723.66-16,177.21-9,339.70

Finding the Fourth Proportional to 11,723.66, 16,177.21 and 9,339.70

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Solution

The fourth proportional to 11,723.66, 16,177.21 and 9,339.70 is: 12,887.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,723.66 : 16,177.21 = 9,339.70 : x
  2. Step 2: Convert to fraction form
    11,723.66/16,177.21 = 9,339.70/x
  3. Step 3: Cross multiply
    11,723.66x = 16,177.21 × 9,339.70
  4. Step 4: Simplify right side
    11,723.66x = 151,090,288.24
  5. Step 5: Solve for x
    x = 151,090,288.24/11,723.66
  6. Step 6: Final answer
    x = 12,887.64

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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.