Home / 13,943.43-19,242.54-7,976.97

Finding the Fourth Proportional to 13,943.43, 19,242.54 and 7,976.97

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Solution

The fourth proportional to 13,943.43, 19,242.54 and 7,976.97 is: 11,008.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.43 : 19,242.54 = 7,976.97 : x
  2. Step 2: Convert to fraction form
    13,943.43/19,242.54 = 7,976.97/x
  3. Step 3: Cross multiply
    13,943.43x = 19,242.54 × 7,976.97
  4. Step 4: Simplify right side
    13,943.43x = 153,497,164.30
  5. Step 5: Solve for x
    x = 153,497,164.30/13,943.43
  6. Step 6: Final answer
    x = 11,008.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.