Home / 11,935.81-16,479.01-8,165.26

Finding the Fourth Proportional to 11,935.81, 16,479.01 and 8,165.26

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Solution

The fourth proportional to 11,935.81, 16,479.01 and 8,165.26 is: 11,273.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,935.81 : 16,479.01 = 8,165.26 : x
  2. Step 2: Convert to fraction form
    11,935.81/16,479.01 = 8,165.26/x
  3. Step 3: Cross multiply
    11,935.81x = 16,479.01 × 8,165.26
  4. Step 4: Simplify right side
    11,935.81x = 134,555,401.19
  5. Step 5: Solve for x
    x = 134,555,401.19/11,935.81
  6. Step 6: Final answer
    x = 11,273.25

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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.