Home / 16,724.36-23,079.87-9,171.38

Finding the Fourth Proportional to 16,724.36, 23,079.87 and 9,171.38

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Solution

The fourth proportional to 16,724.36, 23,079.87 and 9,171.38 is: 12,656.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,724.36 : 23,079.87 = 9,171.38 : x
  2. Step 2: Convert to fraction form
    16,724.36/23,079.87 = 9,171.38/x
  3. Step 3: Cross multiply
    16,724.36x = 23,079.87 × 9,171.38
  4. Step 4: Simplify right side
    16,724.36x = 211,674,142.72
  5. Step 5: Solve for x
    x = 211,674,142.72/16,724.36
  6. Step 6: Final answer
    x = 12,656.64

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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.