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Finding the Fourth Proportional to 16,053.56, 22,155 and 8,980.64

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Solution

The fourth proportional to 16,053.56, 22,155 and 8,980.64 is: 12,393.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,053.56 : 22,155 = 8,980.64 : x
  2. Step 2: Convert to fraction form
    16,053.56/22,155 = 8,980.64/x
  3. Step 3: Cross multiply
    16,053.56x = 22,155 × 8,980.64
  4. Step 4: Simplify right side
    16,053.56x = 198,966,079.20
  5. Step 5: Solve for x
    x = 198,966,079.20/16,053.56
  6. Step 6: Final answer
    x = 12,393.89

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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.