Home / 19,868.90-27,406.93-11,797.09

Finding the Fourth Proportional to 19,868.90, 27,406.93 and 11,797.09

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Solution

The fourth proportional to 19,868.90, 27,406.93 and 11,797.09 is: 16,272.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,868.90 : 27,406.93 = 11,797.09 : x
  2. Step 2: Convert to fraction form
    19,868.90/27,406.93 = 11,797.09/x
  3. Step 3: Cross multiply
    19,868.90x = 27,406.93 × 11,797.09
  4. Step 4: Simplify right side
    19,868.90x = 323,321,823.81
  5. Step 5: Solve for x
    x = 323,321,823.81/19,868.90
  6. Step 6: Final answer
    x = 16,272.76

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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.