Home / 12,055.78-16,625.87-8,272.27

Finding the Fourth Proportional to 12,055.78, 16,625.87 and 8,272.27

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Solution

The fourth proportional to 12,055.78, 16,625.87 and 8,272.27 is: 11,408.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,055.78 : 16,625.87 = 8,272.27 : x
  2. Step 2: Convert to fraction form
    12,055.78/16,625.87 = 8,272.27/x
  3. Step 3: Cross multiply
    12,055.78x = 16,625.87 × 8,272.27
  4. Step 4: Simplify right side
    12,055.78x = 137,533,602.70
  5. Step 5: Solve for x
    x = 137,533,602.70/12,055.78
  6. Step 6: Final answer
    x = 11,408.11

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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.