Home / 11,379.20-15,701.39-6,342.32

Finding the Fourth Proportional to 11,379.20, 15,701.39 and 6,342.32

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Solution

The fourth proportional to 11,379.20, 15,701.39 and 6,342.32 is: 8,751.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,379.20 : 15,701.39 = 6,342.32 : x
  2. Step 2: Convert to fraction form
    11,379.20/15,701.39 = 6,342.32/x
  3. Step 3: Cross multiply
    11,379.20x = 15,701.39 × 6,342.32
  4. Step 4: Simplify right side
    11,379.20x = 99,583,239.82
  5. Step 5: Solve for x
    x = 99,583,239.82/11,379.20
  6. Step 6: Final answer
    x = 8,751.34

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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.