Home / 11,900.26-16,421.66-6,521.64

Finding the Fourth Proportional to 11,900.26, 16,421.66 and 6,521.64

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Solution

The fourth proportional to 11,900.26, 16,421.66 and 6,521.64 is: 8,999.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,900.26 : 16,421.66 = 6,521.64 : x
  2. Step 2: Convert to fraction form
    11,900.26/16,421.66 = 6,521.64/x
  3. Step 3: Cross multiply
    11,900.26x = 16,421.66 × 6,521.64
  4. Step 4: Simplify right side
    11,900.26x = 107,096,122.11
  5. Step 5: Solve for x
    x = 107,096,122.11/11,900.26
  6. Step 6: Final answer
    x = 8,999.48

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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.