Home / 9,917.77-13,688.19-5,939.68

Finding the Fourth Proportional to 9,917.77, 13,688.19 and 5,939.68

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Solution

The fourth proportional to 9,917.77, 13,688.19 and 5,939.68 is: 8,197.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,917.77 : 13,688.19 = 5,939.68 : x
  2. Step 2: Convert to fraction form
    9,917.77/13,688.19 = 5,939.68/x
  3. Step 3: Cross multiply
    9,917.77x = 13,688.19 × 5,939.68
  4. Step 4: Simplify right side
    9,917.77x = 81,303,468.38
  5. Step 5: Solve for x
    x = 81,303,468.38/9,917.77
  6. Step 6: Final answer
    x = 8,197.76

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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.