Home / 12,077.86-18,103.02-5,489.32

Finding the Fourth Proportional to 12,077.86, 18,103.02 and 5,489.32

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Solution

The fourth proportional to 12,077.86, 18,103.02 and 5,489.32 is: 8,227.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,077.86 : 18,103.02 = 5,489.32 : x
  2. Step 2: Convert to fraction form
    12,077.86/18,103.02 = 5,489.32/x
  3. Step 3: Cross multiply
    12,077.86x = 18,103.02 × 5,489.32
  4. Step 4: Simplify right side
    12,077.86x = 99,373,269.75
  5. Step 5: Solve for x
    x = 99,373,269.75/12,077.86
  6. Step 6: Final answer
    x = 8,227.72

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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.