Home / 12,269.24-18,414.36-4,878.90

Finding the Fourth Proportional to 12,269.24, 18,414.36 and 4,878.90

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Solution

The fourth proportional to 12,269.24, 18,414.36 and 4,878.90 is: 7,322.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,269.24 : 18,414.36 = 4,878.90 : x
  2. Step 2: Convert to fraction form
    12,269.24/18,414.36 = 4,878.90/x
  3. Step 3: Cross multiply
    12,269.24x = 18,414.36 × 4,878.90
  4. Step 4: Simplify right side
    12,269.24x = 89,841,821.00
  5. Step 5: Solve for x
    x = 89,841,821.00/12,269.24
  6. Step 6: Final answer
    x = 7,322.53

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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.