Home / 21,074.76-29,082.82-11,643.08

Finding the Fourth Proportional to 21,074.76, 29,082.82 and 11,643.08

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Solution

The fourth proportional to 21,074.76, 29,082.82 and 11,643.08 is: 16,067.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,074.76 : 29,082.82 = 11,643.08 : x
  2. Step 2: Convert to fraction form
    21,074.76/29,082.82 = 11,643.08/x
  3. Step 3: Cross multiply
    21,074.76x = 29,082.82 × 11,643.08
  4. Step 4: Simplify right side
    21,074.76x = 338,613,599.89
  5. Step 5: Solve for x
    x = 338,613,599.89/21,074.76
  6. Step 6: Final answer
    x = 16,067.26

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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.