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Finding the Fourth Proportional to 12,017.88, 16,600.68 and 9,668.88

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Solution

The fourth proportional to 12,017.88, 16,600.68 and 9,668.88 is: 13,355.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,017.88 : 16,600.68 = 9,668.88 : x
  2. Step 2: Convert to fraction form
    12,017.88/16,600.68 = 9,668.88/x
  3. Step 3: Cross multiply
    12,017.88x = 16,600.68 × 9,668.88
  4. Step 4: Simplify right side
    12,017.88x = 160,509,982.84
  5. Step 5: Solve for x
    x = 160,509,982.84/12,017.88
  6. Step 6: Final answer
    x = 13,355.93

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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.