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Finding the Fourth Proportional to 11,674.58, 17,505.03 and 7,981.28

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Solution

The fourth proportional to 11,674.58, 17,505.03 and 7,981.28 is: 11,967.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,674.58 : 17,505.03 = 7,981.28 : x
  2. Step 2: Convert to fraction form
    11,674.58/17,505.03 = 7,981.28/x
  3. Step 3: Cross multiply
    11,674.58x = 17,505.03 × 7,981.28
  4. Step 4: Simplify right side
    11,674.58x = 139,712,545.84
  5. Step 5: Solve for x
    x = 139,712,545.84/11,674.58
  6. Step 6: Final answer
    x = 11,967.24

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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.