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Finding the Fourth Proportional to 8,013.57, 12,018.93 and 2,170.63

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Solution

The fourth proportional to 8,013.57, 12,018.93 and 2,170.63 is: 3,255.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,013.57 : 12,018.93 = 2,170.63 : x
  2. Step 2: Convert to fraction form
    8,013.57/12,018.93 = 2,170.63/x
  3. Step 3: Cross multiply
    8,013.57x = 12,018.93 × 2,170.63
  4. Step 4: Simplify right side
    8,013.57x = 26,088,650.03
  5. Step 5: Solve for x
    x = 26,088,650.03/8,013.57
  6. Step 6: Final answer
    x = 3,255.56

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.