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Finding the Fourth Proportional to 8,445.93, 12,649.86 and 4,066.67

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Solution

The fourth proportional to 8,445.93, 12,649.86 and 4,066.67 is: 6,090.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.93 : 12,649.86 = 4,066.67 : x
  2. Step 2: Convert to fraction form
    8,445.93/12,649.86 = 4,066.67/x
  3. Step 3: Cross multiply
    8,445.93x = 12,649.86 × 4,066.67
  4. Step 4: Simplify right side
    8,445.93x = 51,442,742.92
  5. Step 5: Solve for x
    x = 51,442,742.92/8,445.93
  6. Step 6: Final answer
    x = 6,090.83

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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.