Home / 19,743.78-27,246.48-11,785.84

Finding the Fourth Proportional to 19,743.78, 27,246.48 and 11,785.84

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Solution

The fourth proportional to 19,743.78, 27,246.48 and 11,785.84 is: 16,264.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,743.78 : 27,246.48 = 11,785.84 : x
  2. Step 2: Convert to fraction form
    19,743.78/27,246.48 = 11,785.84/x
  3. Step 3: Cross multiply
    19,743.78x = 27,246.48 × 11,785.84
  4. Step 4: Simplify right side
    19,743.78x = 321,122,541.53
  5. Step 5: Solve for x
    x = 321,122,541.53/19,743.78
  6. Step 6: Final answer
    x = 16,264.49

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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.