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Finding the Fourth Proportional to 10,379.70, 15,560.10 and 3,804.30

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Solution

The fourth proportional to 10,379.70, 15,560.10 and 3,804.30 is: 5,702.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,379.70 : 15,560.10 = 3,804.30 : x
  2. Step 2: Convert to fraction form
    10,379.70/15,560.10 = 3,804.30/x
  3. Step 3: Cross multiply
    10,379.70x = 15,560.10 × 3,804.30
  4. Step 4: Simplify right side
    10,379.70x = 59,195,288.43
  5. Step 5: Solve for x
    x = 59,195,288.43/10,379.70
  6. Step 6: Final answer
    x = 5,702.99

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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.