Home / 19,678.80-27,156.06-10,726.11

Finding the Fourth Proportional to 19,678.80, 27,156.06 and 10,726.11

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Solution

The fourth proportional to 19,678.80, 27,156.06 and 10,726.11 is: 14,801.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,678.80 : 27,156.06 = 10,726.11 : x
  2. Step 2: Convert to fraction form
    19,678.80/27,156.06 = 10,726.11/x
  3. Step 3: Cross multiply
    19,678.80x = 27,156.06 × 10,726.11
  4. Step 4: Simplify right side
    19,678.80x = 291,278,886.73
  5. Step 5: Solve for x
    x = 291,278,886.73/19,678.80
  6. Step 6: Final answer
    x = 14,801.66

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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.