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Finding the Fourth Proportional to 9,795.80, 14,664.90 and 8,643.80

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Solution

The fourth proportional to 9,795.80, 14,664.90 and 8,643.80 is: 12,940.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,795.80 : 14,664.90 = 8,643.80 : x
  2. Step 2: Convert to fraction form
    9,795.80/14,664.90 = 8,643.80/x
  3. Step 3: Cross multiply
    9,795.80x = 14,664.90 × 8,643.80
  4. Step 4: Simplify right side
    9,795.80x = 126,760,462.62
  5. Step 5: Solve for x
    x = 126,760,462.62/9,795.80
  6. Step 6: Final answer
    x = 12,940.29

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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.