Home / 11,903.45-17,842.78-4,000.10

Finding the Fourth Proportional to 11,903.45, 17,842.78 and 4,000.10

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Solution

The fourth proportional to 11,903.45, 17,842.78 and 4,000.10 is: 5,995.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,903.45 : 17,842.78 = 4,000.10 : x
  2. Step 2: Convert to fraction form
    11,903.45/17,842.78 = 4,000.10/x
  3. Step 3: Cross multiply
    11,903.45x = 17,842.78 × 4,000.10
  4. Step 4: Simplify right side
    11,903.45x = 71,372,904.28
  5. Step 5: Solve for x
    x = 71,372,904.28/11,903.45
  6. Step 6: Final answer
    x = 5,995.98

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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.