Home / 15,400.08-21,242.52-9,108

Finding the Fourth Proportional to 15,400.08, 21,242.52 and 9,108

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Solution

The fourth proportional to 15,400.08, 21,242.52 and 9,108 is: 12,563.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400.08 : 21,242.52 = 9,108 : x
  2. Step 2: Convert to fraction form
    15,400.08/21,242.52 = 9,108/x
  3. Step 3: Cross multiply
    15,400.08x = 21,242.52 × 9,108
  4. Step 4: Simplify right side
    15,400.08x = 193,476,872.16
  5. Step 5: Solve for x
    x = 193,476,872.16/15,400.08
  6. Step 6: Final answer
    x = 12,563.37

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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.