Home / 19,760.76-27,269.60-11,813.58

Finding the Fourth Proportional to 19,760.76, 27,269.60 and 11,813.58

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Solution

The fourth proportional to 19,760.76, 27,269.60 and 11,813.58 is: 16,302.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,760.76 : 27,269.60 = 11,813.58 : x
  2. Step 2: Convert to fraction form
    19,760.76/27,269.60 = 11,813.58/x
  3. Step 3: Cross multiply
    19,760.76x = 27,269.60 × 11,813.58
  4. Step 4: Simplify right side
    19,760.76x = 322,151,542.10
  5. Step 5: Solve for x
    x = 322,151,542.10/19,760.76
  6. Step 6: Final answer
    x = 16,302.59

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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.