Home / 10,803.24-16,207.29-7,815.56

Finding the Fourth Proportional to 10,803.24, 16,207.29 and 7,815.56

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Solution

The fourth proportional to 10,803.24, 16,207.29 and 7,815.56 is: 11,725.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,803.24 : 16,207.29 = 7,815.56 : x
  2. Step 2: Convert to fraction form
    10,803.24/16,207.29 = 7,815.56/x
  3. Step 3: Cross multiply
    10,803.24x = 16,207.29 × 7,815.56
  4. Step 4: Simplify right side
    10,803.24x = 126,668,966.40
  5. Step 5: Solve for x
    x = 126,668,966.40/10,803.24
  6. Step 6: Final answer
    x = 11,725.09

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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.