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Finding the Fourth Proportional to 9,940.58, 14,910.09 and 4,394.10

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Solution

The fourth proportional to 9,940.58, 14,910.09 and 4,394.10 is: 6,590.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,940.58 : 14,910.09 = 4,394.10 : x
  2. Step 2: Convert to fraction form
    9,940.58/14,910.09 = 4,394.10/x
  3. Step 3: Cross multiply
    9,940.58x = 14,910.09 × 4,394.10
  4. Step 4: Simplify right side
    9,940.58x = 65,516,409.99
  5. Step 5: Solve for x
    x = 65,516,409.99/9,940.58
  6. Step 6: Final answer
    x = 6,590.81

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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.