Home / 11,379.14-15,702.69-6,343.91

Finding the Fourth Proportional to 11,379.14, 15,702.69 and 6,343.91

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Solution

The fourth proportional to 11,379.14, 15,702.69 and 6,343.91 is: 8,754.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,379.14 : 15,702.69 = 6,343.91 : x
  2. Step 2: Convert to fraction form
    11,379.14/15,702.69 = 6,343.91/x
  3. Step 3: Cross multiply
    11,379.14x = 15,702.69 × 6,343.91
  4. Step 4: Simplify right side
    11,379.14x = 99,616,452.12
  5. Step 5: Solve for x
    x = 99,616,452.12/11,379.14
  6. Step 6: Final answer
    x = 8,754.30

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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.