Home / 11,165.28-16,724.40-5,316

Finding the Fourth Proportional to 11,165.28, 16,724.40 and 5,316

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Solution

The fourth proportional to 11,165.28, 16,724.40 and 5,316 is: 7,962.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,165.28 : 16,724.40 = 5,316 : x
  2. Step 2: Convert to fraction form
    11,165.28/16,724.40 = 5,316/x
  3. Step 3: Cross multiply
    11,165.28x = 16,724.40 × 5,316
  4. Step 4: Simplify right side
    11,165.28x = 88,906,910.40
  5. Step 5: Solve for x
    x = 88,906,910.40/11,165.28
  6. Step 6: Final answer
    x = 7,962.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.