Home / 8,605.20-11,875.44-6,091.80

Finding the Fourth Proportional to 8,605.20, 11,875.44 and 6,091.80

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Solution

The fourth proportional to 8,605.20, 11,875.44 and 6,091.80 is: 8,406.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,605.20 : 11,875.44 = 6,091.80 : x
  2. Step 2: Convert to fraction form
    8,605.20/11,875.44 = 6,091.80/x
  3. Step 3: Cross multiply
    8,605.20x = 11,875.44 × 6,091.80
  4. Step 4: Simplify right side
    8,605.20x = 72,342,805.39
  5. Step 5: Solve for x
    x = 72,342,805.39/8,605.20
  6. Step 6: Final answer
    x = 8,406.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.