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Finding the Fourth Proportional to 11,935.53, 17,909.06 and 4,920.73

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Solution

The fourth proportional to 11,935.53, 17,909.06 and 4,920.73 is: 7,383.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,935.53 : 17,909.06 = 4,920.73 : x
  2. Step 2: Convert to fraction form
    11,935.53/17,909.06 = 4,920.73/x
  3. Step 3: Cross multiply
    11,935.53x = 17,909.06 × 4,920.73
  4. Step 4: Simplify right side
    11,935.53x = 88,125,648.81
  5. Step 5: Solve for x
    x = 88,125,648.81/11,935.53
  6. Step 6: Final answer
    x = 7,383.47

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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.