Home / 11,882.64-16,400.04-7,167.28

Finding the Fourth Proportional to 11,882.64, 16,400.04 and 7,167.28

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Solution

The fourth proportional to 11,882.64, 16,400.04 and 7,167.28 is: 9,892.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,882.64 : 16,400.04 = 7,167.28 : x
  2. Step 2: Convert to fraction form
    11,882.64/16,400.04 = 7,167.28/x
  3. Step 3: Cross multiply
    11,882.64x = 16,400.04 × 7,167.28
  4. Step 4: Simplify right side
    11,882.64x = 117,543,678.69
  5. Step 5: Solve for x
    x = 117,543,678.69/11,882.64
  6. Step 6: Final answer
    x = 9,892.05

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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.