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Finding the Fourth Proportional to 12,810.28, 17,671.07 and 7,504.07

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Solution

The fourth proportional to 12,810.28, 17,671.07 and 7,504.07 is: 10,351.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,810.28 : 17,671.07 = 7,504.07 : x
  2. Step 2: Convert to fraction form
    12,810.28/17,671.07 = 7,504.07/x
  3. Step 3: Cross multiply
    12,810.28x = 17,671.07 × 7,504.07
  4. Step 4: Simplify right side
    12,810.28x = 132,604,936.91
  5. Step 5: Solve for x
    x = 132,604,936.91/12,810.28
  6. Step 6: Final answer
    x = 10,351.45

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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.