Home / 16,801.20-23,184.15-9,728.10

Finding the Fourth Proportional to 16,801.20, 23,184.15 and 9,728.10

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Solution

The fourth proportional to 16,801.20, 23,184.15 and 9,728.10 is: 13,423.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,801.20 : 23,184.15 = 9,728.10 : x
  2. Step 2: Convert to fraction form
    16,801.20/23,184.15 = 9,728.10/x
  3. Step 3: Cross multiply
    16,801.20x = 23,184.15 × 9,728.10
  4. Step 4: Simplify right side
    16,801.20x = 225,537,729.62
  5. Step 5: Solve for x
    x = 225,537,729.62/16,801.20
  6. Step 6: Final answer
    x = 13,423.91

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Half scale
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Double scale
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Similar ratio
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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.