Home / 13,276.49-19,911.65-3,917.13

Finding the Fourth Proportional to 13,276.49, 19,911.65 and 3,917.13

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Solution

The fourth proportional to 13,276.49, 19,911.65 and 3,917.13 is: 5,874.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.49 : 19,911.65 = 3,917.13 : x
  2. Step 2: Convert to fraction form
    13,276.49/19,911.65 = 3,917.13/x
  3. Step 3: Cross multiply
    13,276.49x = 19,911.65 × 3,917.13
  4. Step 4: Simplify right side
    13,276.49x = 77,996,501.98
  5. Step 5: Solve for x
    x = 77,996,501.98/13,276.49
  6. Step 6: Final answer
    x = 5,874.79

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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.