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Finding the Fourth Proportional to 9,354.01, 12,908.41 and 5,161.99

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Solution

The fourth proportional to 9,354.01, 12,908.41 and 5,161.99 is: 7,123.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,354.01 : 12,908.41 = 5,161.99 : x
  2. Step 2: Convert to fraction form
    9,354.01/12,908.41 = 5,161.99/x
  3. Step 3: Cross multiply
    9,354.01x = 12,908.41 × 5,161.99
  4. Step 4: Simplify right side
    9,354.01x = 66,633,083.34
  5. Step 5: Solve for x
    x = 66,633,083.34/9,354.01
  6. Step 6: Final answer
    x = 7,123.48

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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.