Home / 19,625.64-27,082.80-11,128.58

Finding the Fourth Proportional to 19,625.64, 27,082.80 and 11,128.58

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Solution

The fourth proportional to 19,625.64, 27,082.80 and 11,128.58 is: 15,357.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,625.64 : 27,082.80 = 11,128.58 : x
  2. Step 2: Convert to fraction form
    19,625.64/27,082.80 = 11,128.58/x
  3. Step 3: Cross multiply
    19,625.64x = 27,082.80 × 11,128.58
  4. Step 4: Simplify right side
    19,625.64x = 301,392,971.01
  5. Step 5: Solve for x
    x = 301,392,971.01/19,625.64
  6. Step 6: Final answer
    x = 15,357.10

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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.