Home / 13,943.21-19,241.70-7,975.13

Finding the Fourth Proportional to 13,943.21, 19,241.70 and 7,975.13

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Solution

The fourth proportional to 13,943.21, 19,241.70 and 7,975.13 is: 11,005.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.21 : 19,241.70 = 7,975.13 : x
  2. Step 2: Convert to fraction form
    13,943.21/19,241.70 = 7,975.13/x
  3. Step 3: Cross multiply
    13,943.21x = 19,241.70 × 7,975.13
  4. Step 4: Simplify right side
    13,943.21x = 153,455,058.92
  5. Step 5: Solve for x
    x = 153,455,058.92/13,943.21
  6. Step 6: Final answer
    x = 11,005.72

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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.