Home / 19,668.80-27,143.26-10,716.30

Finding the Fourth Proportional to 19,668.80, 27,143.26 and 10,716.30

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Solution

The fourth proportional to 19,668.80, 27,143.26 and 10,716.30 is: 14,788.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668.80 : 27,143.26 = 10,716.30 : x
  2. Step 2: Convert to fraction form
    19,668.80/27,143.26 = 10,716.30/x
  3. Step 3: Cross multiply
    19,668.80x = 27,143.26 × 10,716.30
  4. Step 4: Simplify right side
    19,668.80x = 290,875,341.24
  5. Step 5: Solve for x
    x = 290,875,341.24/19,668.80
  6. Step 6: Final answer
    x = 14,788.67

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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.