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Finding the Fourth Proportional to 12,501.89, 17,252.57 and 6,912.89

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Solution

The fourth proportional to 12,501.89, 17,252.57 and 6,912.89 is: 9,539.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,501.89 : 17,252.57 = 6,912.89 : x
  2. Step 2: Convert to fraction form
    12,501.89/17,252.57 = 6,912.89/x
  3. Step 3: Cross multiply
    12,501.89x = 17,252.57 × 6,912.89
  4. Step 4: Simplify right side
    12,501.89x = 119,265,084.06
  5. Step 5: Solve for x
    x = 119,265,084.06/12,501.89
  6. Step 6: Final answer
    x = 9,539.76

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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.