Home / 11,185.29-15,431.31-6,468.66

Finding the Fourth Proportional to 11,185.29, 15,431.31 and 6,468.66

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Solution

The fourth proportional to 11,185.29, 15,431.31 and 6,468.66 is: 8,924.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,185.29 : 15,431.31 = 6,468.66 : x
  2. Step 2: Convert to fraction form
    11,185.29/15,431.31 = 6,468.66/x
  3. Step 3: Cross multiply
    11,185.29x = 15,431.31 × 6,468.66
  4. Step 4: Simplify right side
    11,185.29x = 99,819,897.74
  5. Step 5: Solve for x
    x = 99,819,897.74/11,185.29
  6. Step 6: Final answer
    x = 8,924.21

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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.