Home / 11,899.26-16,420.77-6,521.65

Finding the Fourth Proportional to 11,899.26, 16,420.77 and 6,521.65

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Solution

The fourth proportional to 11,899.26, 16,420.77 and 6,521.65 is: 8,999.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,899.26 : 16,420.77 = 6,521.65 : x
  2. Step 2: Convert to fraction form
    11,899.26/16,420.77 = 6,521.65/x
  3. Step 3: Cross multiply
    11,899.26x = 16,420.77 × 6,521.65
  4. Step 4: Simplify right side
    11,899.26x = 107,090,514.67
  5. Step 5: Solve for x
    x = 107,090,514.67/11,899.26
  6. Step 6: Final answer
    x = 8,999.76

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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.