Home / 19,664.91-27,138.06-10,712.88

Finding the Fourth Proportional to 19,664.91, 27,138.06 and 10,712.88

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Solution

The fourth proportional to 19,664.91, 27,138.06 and 10,712.88 is: 14,784.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.91 : 27,138.06 = 10,712.88 : x
  2. Step 2: Convert to fraction form
    19,664.91/27,138.06 = 10,712.88/x
  3. Step 3: Cross multiply
    19,664.91x = 27,138.06 × 10,712.88
  4. Step 4: Simplify right side
    19,664.91x = 290,726,780.21
  5. Step 5: Solve for x
    x = 290,726,780.21/19,664.91
  6. Step 6: Final answer
    x = 14,784.04

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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.