Home / 13,207.11-19,711.43-11,420.29

Finding the Fourth Proportional to 13,207.11, 19,711.43 and 11,420.29

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Solution

The fourth proportional to 13,207.11, 19,711.43 and 11,420.29 is: 17,044.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.11 : 19,711.43 = 11,420.29 : x
  2. Step 2: Convert to fraction form
    13,207.11/19,711.43 = 11,420.29/x
  3. Step 3: Cross multiply
    13,207.11x = 19,711.43 × 11,420.29
  4. Step 4: Simplify right side
    13,207.11x = 225,110,257.28
  5. Step 5: Solve for x
    x = 225,110,257.28/13,207.11
  6. Step 6: Final answer
    x = 17,044.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.