Home / 9,192.78-12,685.26-6,212.70

Finding the Fourth Proportional to 9,192.78, 12,685.26 and 6,212.70

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Solution

The fourth proportional to 9,192.78, 12,685.26 and 6,212.70 is: 8,573.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,192.78 : 12,685.26 = 6,212.70 : x
  2. Step 2: Convert to fraction form
    9,192.78/12,685.26 = 6,212.70/x
  3. Step 3: Cross multiply
    9,192.78x = 12,685.26 × 6,212.70
  4. Step 4: Simplify right side
    9,192.78x = 78,809,714.80
  5. Step 5: Solve for x
    x = 78,809,714.80/9,192.78
  6. Step 6: Final answer
    x = 8,573.00

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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.