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Finding the Fourth Proportional to 9,006.39, 13,419 and 8,503.38

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Solution

The fourth proportional to 9,006.39, 13,419 and 8,503.38 is: 12,669.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,006.39 : 13,419 = 8,503.38 : x
  2. Step 2: Convert to fraction form
    9,006.39/13,419 = 8,503.38/x
  3. Step 3: Cross multiply
    9,006.39x = 13,419 × 8,503.38
  4. Step 4: Simplify right side
    9,006.39x = 114,106,856.22
  5. Step 5: Solve for x
    x = 114,106,856.22/9,006.39
  6. Step 6: Final answer
    x = 12,669.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.