Home / 8,055.80-12,084.09-6,647.61

Finding the Fourth Proportional to 8,055.80, 12,084.09 and 6,647.61

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Solution

The fourth proportional to 8,055.80, 12,084.09 and 6,647.61 is: 9,971.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,055.80 : 12,084.09 = 6,647.61 : x
  2. Step 2: Convert to fraction form
    8,055.80/12,084.09 = 6,647.61/x
  3. Step 3: Cross multiply
    8,055.80x = 12,084.09 × 6,647.61
  4. Step 4: Simplify right side
    8,055.80x = 80,330,337.91
  5. Step 5: Solve for x
    x = 80,330,337.91/8,055.80
  6. Step 6: Final answer
    x = 9,971.74

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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.