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Finding the Fourth Proportional to 11,887.80, 17,821.67 and 7,495.58

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Solution

The fourth proportional to 11,887.80, 17,821.67 and 7,495.58 is: 11,237.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,887.80 : 17,821.67 = 7,495.58 : x
  2. Step 2: Convert to fraction form
    11,887.80/17,821.67 = 7,495.58/x
  3. Step 3: Cross multiply
    11,887.80x = 17,821.67 × 7,495.58
  4. Step 4: Simplify right side
    11,887.80x = 133,583,626.63
  5. Step 5: Solve for x
    x = 133,583,626.63/11,887.80
  6. Step 6: Final answer
    x = 11,237.04

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1.5x scale

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.