Home / 19,898.19-27,451.55-12,726.46

Finding the Fourth Proportional to 19,898.19, 27,451.55 and 12,726.46

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Solution

The fourth proportional to 19,898.19, 27,451.55 and 12,726.46 is: 17,557.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,898.19 : 27,451.55 = 12,726.46 : x
  2. Step 2: Convert to fraction form
    19,898.19/27,451.55 = 12,726.46/x
  3. Step 3: Cross multiply
    19,898.19x = 27,451.55 × 12,726.46
  4. Step 4: Simplify right side
    19,898.19x = 349,361,053.01
  5. Step 5: Solve for x
    x = 349,361,053.01/19,898.19
  6. Step 6: Final answer
    x = 17,557.43

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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.