Home / 12,272.58-18,417.11-4,878.63

Finding the Fourth Proportional to 12,272.58, 18,417.11 and 4,878.63

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Solution

The fourth proportional to 12,272.58, 18,417.11 and 4,878.63 is: 7,321.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,272.58 : 18,417.11 = 4,878.63 : x
  2. Step 2: Convert to fraction form
    12,272.58/18,417.11 = 4,878.63/x
  3. Step 3: Cross multiply
    12,272.58x = 18,417.11 × 4,878.63
  4. Step 4: Simplify right side
    12,272.58x = 89,850,240.97
  5. Step 5: Solve for x
    x = 89,850,240.97/12,272.58
  6. Step 6: Final answer
    x = 7,321.22

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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.