Home / 13,943.72-19,240.26-7,974.02

Finding the Fourth Proportional to 13,943.72, 19,240.26 and 7,974.02

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Solution

The fourth proportional to 13,943.72, 19,240.26 and 7,974.02 is: 11,002.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.72 : 19,240.26 = 7,974.02 : x
  2. Step 2: Convert to fraction form
    13,943.72/19,240.26 = 7,974.02/x
  3. Step 3: Cross multiply
    13,943.72x = 19,240.26 × 7,974.02
  4. Step 4: Simplify right side
    13,943.72x = 153,422,218.05
  5. Step 5: Solve for x
    x = 153,422,218.05/13,943.72
  6. Step 6: Final answer
    x = 11,002.96

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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.