Home / 19,128.24-26,398.62-11,173.02

Finding the Fourth Proportional to 19,128.24, 26,398.62 and 11,173.02

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Solution

The fourth proportional to 19,128.24, 26,398.62 and 11,173.02 is: 15,419.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,128.24 : 26,398.62 = 11,173.02 : x
  2. Step 2: Convert to fraction form
    19,128.24/26,398.62 = 11,173.02/x
  3. Step 3: Cross multiply
    19,128.24x = 26,398.62 × 11,173.02
  4. Step 4: Simplify right side
    19,128.24x = 294,952,309.23
  5. Step 5: Solve for x
    x = 294,952,309.23/19,128.24
  6. Step 6: Final answer
    x = 15,419.73

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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.