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Finding the Fourth Proportional to 15,651, 21,598.38 and 9,027

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Solution

The fourth proportional to 15,651, 21,598.38 and 9,027 is: 12,457.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,651 : 21,598.38 = 9,027 : x
  2. Step 2: Convert to fraction form
    15,651/21,598.38 = 9,027/x
  3. Step 3: Cross multiply
    15,651x = 21,598.38 × 9,027
  4. Step 4: Simplify right side
    15,651x = 194,968,576.26
  5. Step 5: Solve for x
    x = 194,968,576.26/15,651
  6. Step 6: Final answer
    x = 12,457.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.