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Finding the Fourth Proportional to 8,849.40, 12,174.39 and 8,603.34

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Solution

The fourth proportional to 8,849.40, 12,174.39 and 8,603.34 is: 11,835.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,849.40 : 12,174.39 = 8,603.34 : x
  2. Step 2: Convert to fraction form
    8,849.40/12,174.39 = 8,603.34/x
  3. Step 3: Cross multiply
    8,849.40x = 12,174.39 × 8,603.34
  4. Step 4: Simplify right side
    8,849.40x = 104,740,416.46
  5. Step 5: Solve for x
    x = 104,740,416.46/8,849.40
  6. Step 6: Final answer
    x = 11,835.88

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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.