Home / 11,964.30-18,036.08-11,161.50

Finding the Fourth Proportional to 11,964.30, 18,036.08 and 11,161.50

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Solution

The fourth proportional to 11,964.30, 18,036.08 and 11,161.50 is: 16,825.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,964.30 : 18,036.08 = 11,161.50 : x
  2. Step 2: Convert to fraction form
    11,964.30/18,036.08 = 11,161.50/x
  3. Step 3: Cross multiply
    11,964.30x = 18,036.08 × 11,161.50
  4. Step 4: Simplify right side
    11,964.30x = 201,309,651.11
  5. Step 5: Solve for x
    x = 201,309,651.11/11,964.30
  6. Step 6: Final answer
    x = 16,825.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.