Home / 15,512.42-21,387.16-11,269.64

Finding the Fourth Proportional to 15,512.42, 21,387.16 and 11,269.64

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Solution

The fourth proportional to 15,512.42, 21,387.16 and 11,269.64 is: 15,537.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,512.42 : 21,387.16 = 11,269.64 : x
  2. Step 2: Convert to fraction form
    15,512.42/21,387.16 = 11,269.64/x
  3. Step 3: Cross multiply
    15,512.42x = 21,387.16 × 11,269.64
  4. Step 4: Simplify right side
    15,512.42x = 241,025,593.82
  5. Step 5: Solve for x
    x = 241,025,593.82/15,512.42
  6. Step 6: Final answer
    x = 15,537.59

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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.