Home / 19,678.91-27,156.75-10,726.39

Finding the Fourth Proportional to 19,678.91, 27,156.75 and 10,726.39

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Solution

The fourth proportional to 19,678.91, 27,156.75 and 10,726.39 is: 14,802.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,678.91 : 27,156.75 = 10,726.39 : x
  2. Step 2: Convert to fraction form
    19,678.91/27,156.75 = 10,726.39/x
  3. Step 3: Cross multiply
    19,678.91x = 27,156.75 × 10,726.39
  4. Step 4: Simplify right side
    19,678.91x = 291,293,755.85
  5. Step 5: Solve for x
    x = 291,293,755.85/19,678.91
  6. Step 6: Final answer
    x = 14,802.33

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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.