Home / 19,668.94-27,153.18-13,329.03

Finding the Fourth Proportional to 19,668.94, 27,153.18 and 13,329.03

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Solution

The fourth proportional to 19,668.94, 27,153.18 and 13,329.03 is: 18,400.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668.94 : 27,153.18 = 13,329.03 : x
  2. Step 2: Convert to fraction form
    19,668.94/27,153.18 = 13,329.03/x
  3. Step 3: Cross multiply
    19,668.94x = 27,153.18 × 13,329.03
  4. Step 4: Simplify right side
    19,668.94x = 361,925,550.82
  5. Step 5: Solve for x
    x = 361,925,550.82/19,668.94
  6. Step 6: Final answer
    x = 18,400.87

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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.