Home / 19,147.80-26,422.41-11,189.16

Finding the Fourth Proportional to 19,147.80, 26,422.41 and 11,189.16

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Solution

The fourth proportional to 19,147.80, 26,422.41 and 11,189.16 is: 15,440.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,147.80 : 26,422.41 = 11,189.16 : x
  2. Step 2: Convert to fraction form
    19,147.80/26,422.41 = 11,189.16/x
  3. Step 3: Cross multiply
    19,147.80x = 26,422.41 × 11,189.16
  4. Step 4: Simplify right side
    19,147.80x = 295,644,573.08
  5. Step 5: Solve for x
    x = 295,644,573.08/19,147.80
  6. Step 6: Final answer
    x = 15,440.13

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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.