Home / 12,276.38-18,414.48-4,485.08

Finding the Fourth Proportional to 12,276.38, 18,414.48 and 4,485.08

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Solution

The fourth proportional to 12,276.38, 18,414.48 and 4,485.08 is: 6,727.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.38 : 18,414.48 = 4,485.08 : x
  2. Step 2: Convert to fraction form
    12,276.38/18,414.48 = 4,485.08/x
  3. Step 3: Cross multiply
    12,276.38x = 18,414.48 × 4,485.08
  4. Step 4: Simplify right side
    12,276.38x = 82,590,415.96
  5. Step 5: Solve for x
    x = 82,590,415.96/12,276.38
  6. Step 6: Final answer
    x = 6,727.59

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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.