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Finding the Fourth Proportional to 18,493.00, 25,520.34 and 9,995.10

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Solution

The fourth proportional to 18,493.00, 25,520.34 and 9,995.10 is: 13,793.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,493.00 : 25,520.34 = 9,995.10 : x
  2. Step 2: Convert to fraction form
    18,493.00/25,520.34 = 9,995.10/x
  3. Step 3: Cross multiply
    18,493.00x = 25,520.34 × 9,995.10
  4. Step 4: Simplify right side
    18,493.00x = 255,078,172.76
  5. Step 5: Solve for x
    x = 255,078,172.76/18,493.00
  6. Step 6: Final answer
    x = 13,793.23

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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.