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Finding the Fourth Proportional to 8,473.56, 12,705.71 and 6,729.77

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Solution

The fourth proportional to 8,473.56, 12,705.71 and 6,729.77 is: 10,090.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,473.56 : 12,705.71 = 6,729.77 : x
  2. Step 2: Convert to fraction form
    8,473.56/12,705.71 = 6,729.77/x
  3. Step 3: Cross multiply
    8,473.56x = 12,705.71 × 6,729.77
  4. Step 4: Simplify right side
    8,473.56x = 85,506,408.81
  5. Step 5: Solve for x
    x = 85,506,408.81/8,473.56
  6. Step 6: Final answer
    x = 10,090.97

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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.