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Finding the Fourth Proportional to 16,668.10, 24,939.60 and 9,980.02

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Solution

The fourth proportional to 16,668.10, 24,939.60 and 9,980.02 is: 14,932.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,668.10 : 24,939.60 = 9,980.02 : x
  2. Step 2: Convert to fraction form
    16,668.10/24,939.60 = 9,980.02/x
  3. Step 3: Cross multiply
    16,668.10x = 24,939.60 × 9,980.02
  4. Step 4: Simplify right side
    16,668.10x = 248,897,706.79
  5. Step 5: Solve for x
    x = 248,897,706.79/16,668.10
  6. Step 6: Final answer
    x = 14,932.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.