Home / 11,726.07-16,181.82-6,420.89

Finding the Fourth Proportional to 11,726.07, 16,181.82 and 6,420.89

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Solution

The fourth proportional to 11,726.07, 16,181.82 and 6,420.89 is: 8,860.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,726.07 : 16,181.82 = 6,420.89 : x
  2. Step 2: Convert to fraction form
    11,726.07/16,181.82 = 6,420.89/x
  3. Step 3: Cross multiply
    11,726.07x = 16,181.82 × 6,420.89
  4. Step 4: Simplify right side
    11,726.07x = 103,901,686.22
  5. Step 5: Solve for x
    x = 103,901,686.22/11,726.07
  6. Step 6: Final answer
    x = 8,860.74

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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.