Home / 19,664.55-27,139.32-11,706.80

Finding the Fourth Proportional to 19,664.55, 27,139.32 and 11,706.80

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Solution

The fourth proportional to 19,664.55, 27,139.32 and 11,706.80 is: 16,156.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.55 : 27,139.32 = 11,706.80 : x
  2. Step 2: Convert to fraction form
    19,664.55/27,139.32 = 11,706.80/x
  3. Step 3: Cross multiply
    19,664.55x = 27,139.32 × 11,706.80
  4. Step 4: Simplify right side
    19,664.55x = 317,714,455.68
  5. Step 5: Solve for x
    x = 317,714,455.68/19,664.55
  6. Step 6: Final answer
    x = 16,156.71

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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.