Home / 13,270.18-19,888.82-11,629.92

Finding the Fourth Proportional to 13,270.18, 19,888.82 and 11,629.92

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Solution

The fourth proportional to 13,270.18, 19,888.82 and 11,629.92 is: 17,430.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,270.18 : 19,888.82 = 11,629.92 : x
  2. Step 2: Convert to fraction form
    13,270.18/19,888.82 = 11,629.92/x
  3. Step 3: Cross multiply
    13,270.18x = 19,888.82 × 11,629.92
  4. Step 4: Simplify right side
    13,270.18x = 231,305,385.49
  5. Step 5: Solve for x
    x = 231,305,385.49/13,270.18
  6. Step 6: Final answer
    x = 17,430.46

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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.