Home / 19,664.80-27,137.88-10,712.80

Finding the Fourth Proportional to 19,664.80, 27,137.88 and 10,712.80

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Solution

The fourth proportional to 19,664.80, 27,137.88 and 10,712.80 is: 14,783.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.80 : 27,137.88 = 10,712.80 : x
  2. Step 2: Convert to fraction form
    19,664.80/27,137.88 = 10,712.80/x
  3. Step 3: Cross multiply
    19,664.80x = 27,137.88 × 10,712.80
  4. Step 4: Simplify right side
    19,664.80x = 290,722,680.86
  5. Step 5: Solve for x
    x = 290,722,680.86/19,664.80
  6. Step 6: Final answer
    x = 14,783.91

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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.