Home / 15,630.21-21,537.75-11,144.43

Finding the Fourth Proportional to 15,630.21, 21,537.75 and 11,144.43

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Solution

The fourth proportional to 15,630.21, 21,537.75 and 11,144.43 is: 15,356.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,630.21 : 21,537.75 = 11,144.43 : x
  2. Step 2: Convert to fraction form
    15,630.21/21,537.75 = 11,144.43/x
  3. Step 3: Cross multiply
    15,630.21x = 21,537.75 × 11,144.43
  4. Step 4: Simplify right side
    15,630.21x = 240,025,947.23
  5. Step 5: Solve for x
    x = 240,025,947.23/15,630.21
  6. Step 6: Final answer
    x = 15,356.54

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1.5x scale

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.