Home / 11,379.24-15,702.94-6,343.20

Finding the Fourth Proportional to 11,379.24, 15,702.94 and 6,343.20

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Solution

The fourth proportional to 11,379.24, 15,702.94 and 6,343.20 is: 8,753.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,379.24 : 15,702.94 = 6,343.20 : x
  2. Step 2: Convert to fraction form
    11,379.24/15,702.94 = 6,343.20/x
  3. Step 3: Cross multiply
    11,379.24x = 15,702.94 × 6,343.20
  4. Step 4: Simplify right side
    11,379.24x = 99,606,889.01
  5. Step 5: Solve for x
    x = 99,606,889.01/11,379.24
  6. Step 6: Final answer
    x = 8,753.39

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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.