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Finding the Fourth Proportional to 11,966.52, 16,491.35 and 8,603.51

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Solution

The fourth proportional to 11,966.52, 16,491.35 and 8,603.51 is: 11,856.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,966.52 : 16,491.35 = 8,603.51 : x
  2. Step 2: Convert to fraction form
    11,966.52/16,491.35 = 8,603.51/x
  3. Step 3: Cross multiply
    11,966.52x = 16,491.35 × 8,603.51
  4. Step 4: Simplify right side
    11,966.52x = 141,883,369.16
  5. Step 5: Solve for x
    x = 141,883,369.16/11,966.52
  6. Step 6: Final answer
    x = 11,856.69

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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.