Home / 9,967.91-13,755.35-6,434.69

Finding the Fourth Proportional to 9,967.91, 13,755.35 and 6,434.69

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Solution

The fourth proportional to 9,967.91, 13,755.35 and 6,434.69 is: 8,879.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,967.91 : 13,755.35 = 6,434.69 : x
  2. Step 2: Convert to fraction form
    9,967.91/13,755.35 = 6,434.69/x
  3. Step 3: Cross multiply
    9,967.91x = 13,755.35 × 6,434.69
  4. Step 4: Simplify right side
    9,967.91x = 88,511,360.40
  5. Step 5: Solve for x
    x = 88,511,360.40/9,967.91
  6. Step 6: Final answer
    x = 8,879.64

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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.