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Finding the Fourth Proportional to 17,940.88, 26,901 and 5,457.16

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Solution

The fourth proportional to 17,940.88, 26,901 and 5,457.16 is: 8,182.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,940.88 : 26,901 = 5,457.16 : x
  2. Step 2: Convert to fraction form
    17,940.88/26,901 = 5,457.16/x
  3. Step 3: Cross multiply
    17,940.88x = 26,901 × 5,457.16
  4. Step 4: Simplify right side
    17,940.88x = 146,803,061.16
  5. Step 5: Solve for x
    x = 146,803,061.16/17,940.88
  6. Step 6: Final answer
    x = 8,182.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.