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Finding the Fourth Proportional to 8,885.79, 13,334.63 and 3,691.67

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Solution

The fourth proportional to 8,885.79, 13,334.63 and 3,691.67 is: 5,539.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,885.79 : 13,334.63 = 3,691.67 : x
  2. Step 2: Convert to fraction form
    8,885.79/13,334.63 = 3,691.67/x
  3. Step 3: Cross multiply
    8,885.79x = 13,334.63 × 3,691.67
  4. Step 4: Simplify right side
    8,885.79x = 49,227,053.53
  5. Step 5: Solve for x
    x = 49,227,053.53/8,885.79
  6. Step 6: Final answer
    x = 5,539.97

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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.