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Finding the Fourth Proportional to 8,955.34, 13,433 and 3,111.95

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Solution

The fourth proportional to 8,955.34, 13,433 and 3,111.95 is: 4,667.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,955.34 : 13,433 = 3,111.95 : x
  2. Step 2: Convert to fraction form
    8,955.34/13,433 = 3,111.95/x
  3. Step 3: Cross multiply
    8,955.34x = 13,433 × 3,111.95
  4. Step 4: Simplify right side
    8,955.34x = 41,802,824.35
  5. Step 5: Solve for x
    x = 41,802,824.35/8,955.34
  6. Step 6: Final answer
    x = 4,667.92

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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.