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Finding the Fourth Proportional to 8,383.34, 12,560.42 and 4,480.76

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Solution

The fourth proportional to 8,383.34, 12,560.42 and 4,480.76 is: 6,713.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,383.34 : 12,560.42 = 4,480.76 : x
  2. Step 2: Convert to fraction form
    8,383.34/12,560.42 = 4,480.76/x
  3. Step 3: Cross multiply
    8,383.34x = 12,560.42 × 4,480.76
  4. Step 4: Simplify right side
    8,383.34x = 56,280,227.52
  5. Step 5: Solve for x
    x = 56,280,227.52/8,383.34
  6. Step 6: Final answer
    x = 6,713.34

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Double scale
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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.