Home / 19,717.20-27,210-10,764.60

Finding the Fourth Proportional to 19,717.20, 27,210 and 10,764.60

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Solution

The fourth proportional to 19,717.20, 27,210 and 10,764.60 is: 14,855.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,717.20 : 27,210 = 10,764.60 : x
  2. Step 2: Convert to fraction form
    19,717.20/27,210 = 10,764.60/x
  3. Step 3: Cross multiply
    19,717.20x = 27,210 × 10,764.60
  4. Step 4: Simplify right side
    19,717.20x = 292,904,766
  5. Step 5: Solve for x
    x = 292,904,766/19,717.20
  6. Step 6: Final answer
    x = 14,855.29

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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.