Home / 19,663.81-27,136.14-10,711.24

Finding the Fourth Proportional to 19,663.81, 27,136.14 and 10,711.24

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Solution

The fourth proportional to 19,663.81, 27,136.14 and 10,711.24 is: 14,781.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,663.81 : 27,136.14 = 10,711.24 : x
  2. Step 2: Convert to fraction form
    19,663.81/27,136.14 = 10,711.24/x
  3. Step 3: Cross multiply
    19,663.81x = 27,136.14 × 10,711.24
  4. Step 4: Simplify right side
    19,663.81x = 290,661,708.21
  5. Step 5: Solve for x
    x = 290,661,708.21/19,663.81
  6. Step 6: Final answer
    x = 14,781.56

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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.