Home / 19,557.36-26,990.64-11,175.12

Finding the Fourth Proportional to 19,557.36, 26,990.64 and 11,175.12

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Solution

The fourth proportional to 19,557.36, 26,990.64 and 11,175.12 is: 15,422.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,557.36 : 26,990.64 = 11,175.12 : x
  2. Step 2: Convert to fraction form
    19,557.36/26,990.64 = 11,175.12/x
  3. Step 3: Cross multiply
    19,557.36x = 26,990.64 × 11,175.12
  4. Step 4: Simplify right side
    19,557.36x = 301,623,640.88
  5. Step 5: Solve for x
    x = 301,623,640.88/19,557.36
  6. Step 6: Final answer
    x = 15,422.51

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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.