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Finding the Fourth Proportional to 13,272.58, 19,912.11 and 4,038.58

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Solution

The fourth proportional to 13,272.58, 19,912.11 and 4,038.58 is: 6,058.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.58 : 19,912.11 = 4,038.58 : x
  2. Step 2: Convert to fraction form
    13,272.58/19,912.11 = 4,038.58/x
  3. Step 3: Cross multiply
    13,272.58x = 19,912.11 × 4,038.58
  4. Step 4: Simplify right side
    13,272.58x = 80,416,649.20
  5. Step 5: Solve for x
    x = 80,416,649.20/13,272.58
  6. Step 6: Final answer
    x = 6,058.86

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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.