Home / 8,845.78-12,209.14-6,927.78

Finding the Fourth Proportional to 8,845.78, 12,209.14 and 6,927.78

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Solution

The fourth proportional to 8,845.78, 12,209.14 and 6,927.78 is: 9,561.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,845.78 : 12,209.14 = 6,927.78 : x
  2. Step 2: Convert to fraction form
    8,845.78/12,209.14 = 6,927.78/x
  3. Step 3: Cross multiply
    8,845.78x = 12,209.14 × 6,927.78
  4. Step 4: Simplify right side
    8,845.78x = 84,582,235.91
  5. Step 5: Solve for x
    x = 84,582,235.91/8,845.78
  6. Step 6: Final answer
    x = 9,561.87

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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.