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Finding the Fourth Proportional to 13,056.91, 18,018.92 and 7,088.96

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Solution

The fourth proportional to 13,056.91, 18,018.92 and 7,088.96 is: 9,782.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,056.91 : 18,018.92 = 7,088.96 : x
  2. Step 2: Convert to fraction form
    13,056.91/18,018.92 = 7,088.96/x
  3. Step 3: Cross multiply
    13,056.91x = 18,018.92 × 7,088.96
  4. Step 4: Simplify right side
    13,056.91x = 127,735,403.12
  5. Step 5: Solve for x
    x = 127,735,403.12/13,056.91
  6. Step 6: Final answer
    x = 9,782.97

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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.