Home / 8,623.70-11,895.09-7,049.30

Finding the Fourth Proportional to 8,623.70, 11,895.09 and 7,049.30

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Solution

The fourth proportional to 8,623.70, 11,895.09 and 7,049.30 is: 9,723.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,623.70 : 11,895.09 = 7,049.30 : x
  2. Step 2: Convert to fraction form
    8,623.70/11,895.09 = 7,049.30/x
  3. Step 3: Cross multiply
    8,623.70x = 11,895.09 × 7,049.30
  4. Step 4: Simplify right side
    8,623.70x = 83,852,057.94
  5. Step 5: Solve for x
    x = 83,852,057.94/8,623.70
  6. Step 6: Final answer
    x = 9,723.44

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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.