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Finding the Fourth Proportional to 12,603.82, 17,394.34 and 6,939.67

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Solution

The fourth proportional to 12,603.82, 17,394.34 and 6,939.67 is: 9,577.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603.82 : 17,394.34 = 6,939.67 : x
  2. Step 2: Convert to fraction form
    12,603.82/17,394.34 = 6,939.67/x
  3. Step 3: Cross multiply
    12,603.82x = 17,394.34 × 6,939.67
  4. Step 4: Simplify right side
    12,603.82x = 120,710,892.50
  5. Step 5: Solve for x
    x = 120,710,892.50/12,603.82
  6. Step 6: Final answer
    x = 9,577.33

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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.