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Finding the Fourth Proportional to 16,668.39, 23,002.97 and 9,959.16

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Solution

The fourth proportional to 16,668.39, 23,002.97 and 9,959.16 is: 13,743.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,668.39 : 23,002.97 = 9,959.16 : x
  2. Step 2: Convert to fraction form
    16,668.39/23,002.97 = 9,959.16/x
  3. Step 3: Cross multiply
    16,668.39x = 23,002.97 × 9,959.16
  4. Step 4: Simplify right side
    16,668.39x = 229,090,208.91
  5. Step 5: Solve for x
    x = 229,090,208.91/16,668.39
  6. Step 6: Final answer
    x = 13,743.99

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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.