Home / 13,274.72-19,911.36-4,040

Finding the Fourth Proportional to 13,274.72, 19,911.36 and 4,040

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Solution

The fourth proportional to 13,274.72, 19,911.36 and 4,040 is: 6,059.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.72 : 19,911.36 = 4,040 : x
  2. Step 2: Convert to fraction form
    13,274.72/19,911.36 = 4,040/x
  3. Step 3: Cross multiply
    13,274.72x = 19,911.36 × 4,040
  4. Step 4: Simplify right side
    13,274.72x = 80,441,894.40
  5. Step 5: Solve for x
    x = 80,441,894.40/13,274.72
  6. Step 6: Final answer
    x = 6,059.78

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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.