Home / 19,372.30-26,726.90-12,661.80

Finding the Fourth Proportional to 19,372.30, 26,726.90 and 12,661.80

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Solution

The fourth proportional to 19,372.30, 26,726.90 and 12,661.80 is: 17,468.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,372.30 : 26,726.90 = 12,661.80 : x
  2. Step 2: Convert to fraction form
    19,372.30/26,726.90 = 12,661.80/x
  3. Step 3: Cross multiply
    19,372.30x = 26,726.90 × 12,661.80
  4. Step 4: Simplify right side
    19,372.30x = 338,410,536.47
  5. Step 5: Solve for x
    x = 338,410,536.47/19,372.30
  6. Step 6: Final answer
    x = 17,468.79

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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.