Home / 13,039.20-19,463.40-11,202.12

Finding the Fourth Proportional to 13,039.20, 19,463.40 and 11,202.12

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Solution

The fourth proportional to 13,039.20, 19,463.40 and 11,202.12 is: 16,721.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039.20 : 19,463.40 = 11,202.12 : x
  2. Step 2: Convert to fraction form
    13,039.20/19,463.40 = 11,202.12/x
  3. Step 3: Cross multiply
    13,039.20x = 19,463.40 × 11,202.12
  4. Step 4: Simplify right side
    13,039.20x = 218,031,342.41
  5. Step 5: Solve for x
    x = 218,031,342.41/13,039.20
  6. Step 6: Final answer
    x = 16,721.22

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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.