Home / 11,521.26-15,900.89-6,486.48

Finding the Fourth Proportional to 11,521.26, 15,900.89 and 6,486.48

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Solution

The fourth proportional to 11,521.26, 15,900.89 and 6,486.48 is: 8,952.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,521.26 : 15,900.89 = 6,486.48 : x
  2. Step 2: Convert to fraction form
    11,521.26/15,900.89 = 6,486.48/x
  3. Step 3: Cross multiply
    11,521.26x = 15,900.89 × 6,486.48
  4. Step 4: Simplify right side
    11,521.26x = 103,140,772.53
  5. Step 5: Solve for x
    x = 103,140,772.53/11,521.26
  6. Step 6: Final answer
    x = 8,952.21

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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.