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Finding the Fourth Proportional to 8,601.31, 12,902.64 and 3,670.99

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Solution

The fourth proportional to 8,601.31, 12,902.64 and 3,670.99 is: 5,506.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,601.31 : 12,902.64 = 3,670.99 : x
  2. Step 2: Convert to fraction form
    8,601.31/12,902.64 = 3,670.99/x
  3. Step 3: Cross multiply
    8,601.31x = 12,902.64 × 3,670.99
  4. Step 4: Simplify right side
    8,601.31x = 47,365,462.41
  5. Step 5: Solve for x
    x = 47,365,462.41/8,601.31
  6. Step 6: Final answer
    x = 5,506.77

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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.