Home / 19,663.66-27,136.50-11,166.15

Finding the Fourth Proportional to 19,663.66, 27,136.50 and 11,166.15

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Solution

The fourth proportional to 19,663.66, 27,136.50 and 11,166.15 is: 15,409.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,663.66 : 27,136.50 = 11,166.15 : x
  2. Step 2: Convert to fraction form
    19,663.66/27,136.50 = 11,166.15/x
  3. Step 3: Cross multiply
    19,663.66x = 27,136.50 × 11,166.15
  4. Step 4: Simplify right side
    19,663.66x = 303,010,229.48
  5. Step 5: Solve for x
    x = 303,010,229.48/19,663.66
  6. Step 6: Final answer
    x = 15,409.66

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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.