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Finding the Fourth Proportional to 12,526.81, 17,286.99 and 6,937.81

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Solution

The fourth proportional to 12,526.81, 17,286.99 and 6,937.81 is: 9,574.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,526.81 : 17,286.99 = 6,937.81 : x
  2. Step 2: Convert to fraction form
    12,526.81/17,286.99 = 6,937.81/x
  3. Step 3: Cross multiply
    12,526.81x = 17,286.99 × 6,937.81
  4. Step 4: Simplify right side
    12,526.81x = 119,933,817.40
  5. Step 5: Solve for x
    x = 119,933,817.40/12,526.81
  6. Step 6: Final answer
    x = 9,574.17

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.