Home / 14,518.25-21,777.38-11,915.72

Finding the Fourth Proportional to 14,518.25, 21,777.38 and 11,915.72

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Solution

The fourth proportional to 14,518.25, 21,777.38 and 11,915.72 is: 17,873.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,518.25 : 21,777.38 = 11,915.72 : x
  2. Step 2: Convert to fraction form
    14,518.25/21,777.38 = 11,915.72/x
  3. Step 3: Cross multiply
    14,518.25x = 21,777.38 × 11,915.72
  4. Step 4: Simplify right side
    14,518.25x = 259,493,120.30
  5. Step 5: Solve for x
    x = 259,493,120.30/14,518.25
  6. Step 6: Final answer
    x = 17,873.58

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1.5x scale

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.