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Finding the Fourth Proportional to 16,668.40, 25,002.60 and 6,801.20

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Solution

The fourth proportional to 16,668.40, 25,002.60 and 6,801.20 is: 10,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,668.40 : 25,002.60 = 6,801.20 : x
  2. Step 2: Convert to fraction form
    16,668.40/25,002.60 = 6,801.20/x
  3. Step 3: Cross multiply
    16,668.40x = 25,002.60 × 6,801.20
  4. Step 4: Simplify right side
    16,668.40x = 170,047,683.12
  5. Step 5: Solve for x
    x = 170,047,683.12/16,668.40
  6. Step 6: Final answer
    x = 10,201.80

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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.