Home / 13,103.29-19,637.22-7,171.21

Finding the Fourth Proportional to 13,103.29, 19,637.22 and 7,171.21

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Solution

The fourth proportional to 13,103.29, 19,637.22 and 7,171.21 is: 10,747.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103.29 : 19,637.22 = 7,171.21 : x
  2. Step 2: Convert to fraction form
    13,103.29/19,637.22 = 7,171.21/x
  3. Step 3: Cross multiply
    13,103.29x = 19,637.22 × 7,171.21
  4. Step 4: Simplify right side
    13,103.29x = 140,822,628.44
  5. Step 5: Solve for x
    x = 140,822,628.44/13,103.29
  6. Step 6: Final answer
    x = 10,747.12

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1.5x scale

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.