Home / 19,726.47-27,198.63-13,009.95

Finding the Fourth Proportional to 19,726.47, 27,198.63 and 13,009.95

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Solution

The fourth proportional to 19,726.47, 27,198.63 and 13,009.95 is: 17,937.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,726.47 : 27,198.63 = 13,009.95 : x
  2. Step 2: Convert to fraction form
    19,726.47/27,198.63 = 13,009.95/x
  3. Step 3: Cross multiply
    19,726.47x = 27,198.63 × 13,009.95
  4. Step 4: Simplify right side
    19,726.47x = 353,852,816.37
  5. Step 5: Solve for x
    x = 353,852,816.37/19,726.47
  6. Step 6: Final answer
    x = 17,937.97

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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.