Home / 19,663.90-27,136.41-10,711.47

Finding the Fourth Proportional to 19,663.90, 27,136.41 and 10,711.47

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Solution

The fourth proportional to 19,663.90, 27,136.41 and 10,711.47 is: 14,781.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,663.90 : 27,136.41 = 10,711.47 : x
  2. Step 2: Convert to fraction form
    19,663.90/27,136.41 = 10,711.47/x
  3. Step 3: Cross multiply
    19,663.90x = 27,136.41 × 10,711.47
  4. Step 4: Simplify right side
    19,663.90x = 290,670,841.62
  5. Step 5: Solve for x
    x = 290,670,841.62/19,663.90
  6. Step 6: Final answer
    x = 14,781.95

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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.