Home / 19,668.86-27,143.17-10,716.60

Finding the Fourth Proportional to 19,668.86, 27,143.17 and 10,716.60

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Solution

The fourth proportional to 19,668.86, 27,143.17 and 10,716.60 is: 14,788.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668.86 : 27,143.17 = 10,716.60 : x
  2. Step 2: Convert to fraction form
    19,668.86/27,143.17 = 10,716.60/x
  3. Step 3: Cross multiply
    19,668.86x = 27,143.17 × 10,716.60
  4. Step 4: Simplify right side
    19,668.86x = 290,882,468.83
  5. Step 5: Solve for x
    x = 290,882,468.83/19,668.86
  6. Step 6: Final answer
    x = 14,788.99

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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.