Home / 18,396.90-27,611.75-8,541.74

Finding the Fourth Proportional to 18,396.90, 27,611.75 and 8,541.74

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Solution

The fourth proportional to 18,396.90, 27,611.75 and 8,541.74 is: 12,820.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,396.90 : 27,611.75 = 8,541.74 : x
  2. Step 2: Convert to fraction form
    18,396.90/27,611.75 = 8,541.74/x
  3. Step 3: Cross multiply
    18,396.90x = 27,611.75 × 8,541.74
  4. Step 4: Simplify right side
    18,396.90x = 235,852,479.83
  5. Step 5: Solve for x
    x = 235,852,479.83/18,396.90
  6. Step 6: Final answer
    x = 12,820.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.