Home / 10,199.40-15,299.09-2,803.89

Finding the Fourth Proportional to 10,199.40, 15,299.09 and 2,803.89

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Solution

The fourth proportional to 10,199.40, 15,299.09 and 2,803.89 is: 4,205.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,199.40 : 15,299.09 = 2,803.89 : x
  2. Step 2: Convert to fraction form
    10,199.40/15,299.09 = 2,803.89/x
  3. Step 3: Cross multiply
    10,199.40x = 15,299.09 × 2,803.89
  4. Step 4: Simplify right side
    10,199.40x = 42,896,965.46
  5. Step 5: Solve for x
    x = 42,896,965.46/10,199.40
  6. Step 6: Final answer
    x = 4,205.83

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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.