Home / 19,758.20-27,266.64-11,801.12

Finding the Fourth Proportional to 19,758.20, 27,266.64 and 11,801.12

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Solution

The fourth proportional to 19,758.20, 27,266.64 and 11,801.12 is: 16,285.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,758.20 : 27,266.64 = 11,801.12 : x
  2. Step 2: Convert to fraction form
    19,758.20/27,266.64 = 11,801.12/x
  3. Step 3: Cross multiply
    19,758.20x = 27,266.64 × 11,801.12
  4. Step 4: Simplify right side
    19,758.20x = 321,776,890.64
  5. Step 5: Solve for x
    x = 321,776,890.64/19,758.20
  6. Step 6: Final answer
    x = 16,285.74

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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.