Home / 19,272.98-28,910.88-8,178.41

Finding the Fourth Proportional to 19,272.98, 28,910.88 and 8,178.41

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Solution

The fourth proportional to 19,272.98, 28,910.88 and 8,178.41 is: 12,268.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,272.98 : 28,910.88 = 8,178.41 : x
  2. Step 2: Convert to fraction form
    19,272.98/28,910.88 = 8,178.41/x
  3. Step 3: Cross multiply
    19,272.98x = 28,910.88 × 8,178.41
  4. Step 4: Simplify right side
    19,272.98x = 236,444,885.55
  5. Step 5: Solve for x
    x = 236,444,885.55/19,272.98
  6. Step 6: Final answer
    x = 12,268.21

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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.