Home / 11,981.05-16,530.28-6,945.01

Finding the Fourth Proportional to 11,981.05, 16,530.28 and 6,945.01

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Solution

The fourth proportional to 11,981.05, 16,530.28 and 6,945.01 is: 9,582.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.05 : 16,530.28 = 6,945.01 : x
  2. Step 2: Convert to fraction form
    11,981.05/16,530.28 = 6,945.01/x
  3. Step 3: Cross multiply
    11,981.05x = 16,530.28 × 6,945.01
  4. Step 4: Simplify right side
    11,981.05x = 114,802,901.21
  5. Step 5: Solve for x
    x = 114,802,901.21/11,981.05
  6. Step 6: Final answer
    x = 9,582.04

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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.