Home / 10,666.20-16,007.30-5,469.40

Finding the Fourth Proportional to 10,666.20, 16,007.30 and 5,469.40

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Solution

The fourth proportional to 10,666.20, 16,007.30 and 5,469.40 is: 8,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,666.20 : 16,007.30 = 5,469.40 : x
  2. Step 2: Convert to fraction form
    10,666.20/16,007.30 = 5,469.40/x
  3. Step 3: Cross multiply
    10,666.20x = 16,007.30 × 5,469.40
  4. Step 4: Simplify right side
    10,666.20x = 87,550,326.62
  5. Step 5: Solve for x
    x = 87,550,326.62/10,666.20
  6. Step 6: Final answer
    x = 8,208.20

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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.