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Finding the Fourth Proportional to 13,702.53, 18,908.59 and 7,733.38

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Solution

The fourth proportional to 13,702.53, 18,908.59 and 7,733.38 is: 10,671.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,702.53 : 18,908.59 = 7,733.38 : x
  2. Step 2: Convert to fraction form
    13,702.53/18,908.59 = 7,733.38/x
  3. Step 3: Cross multiply
    13,702.53x = 18,908.59 × 7,733.38
  4. Step 4: Simplify right side
    13,702.53x = 146,227,311.73
  5. Step 5: Solve for x
    x = 146,227,311.73/13,702.53
  6. Step 6: Final answer
    x = 10,671.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.