Home / 19,668.48-27,143.10-10,716.28

Finding the Fourth Proportional to 19,668.48, 27,143.10 and 10,716.28

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Solution

The fourth proportional to 19,668.48, 27,143.10 and 10,716.28 is: 14,788.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668.48 : 27,143.10 = 10,716.28 : x
  2. Step 2: Convert to fraction form
    19,668.48/27,143.10 = 10,716.28/x
  3. Step 3: Cross multiply
    19,668.48x = 27,143.10 × 10,716.28
  4. Step 4: Simplify right side
    19,668.48x = 290,873,059.67
  5. Step 5: Solve for x
    x = 290,873,059.67/19,668.48
  6. Step 6: Final answer
    x = 14,788.79

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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.