Home / 12,276.08-18,403.80-4,480.40

Finding the Fourth Proportional to 12,276.08, 18,403.80 and 4,480.40

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Solution

The fourth proportional to 12,276.08, 18,403.80 and 4,480.40 is: 6,716.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.08 : 18,403.80 = 4,480.40 : x
  2. Step 2: Convert to fraction form
    12,276.08/18,403.80 = 4,480.40/x
  3. Step 3: Cross multiply
    12,276.08x = 18,403.80 × 4,480.40
  4. Step 4: Simplify right side
    12,276.08x = 82,456,385.52
  5. Step 5: Solve for x
    x = 82,456,385.52/12,276.08
  6. Step 6: Final answer
    x = 6,716.83

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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.