Home / 13,801.17-19,046.38-8,139.23

Finding the Fourth Proportional to 13,801.17, 19,046.38 and 8,139.23

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Solution

The fourth proportional to 13,801.17, 19,046.38 and 8,139.23 is: 11,232.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,801.17 : 19,046.38 = 8,139.23 : x
  2. Step 2: Convert to fraction form
    13,801.17/19,046.38 = 8,139.23/x
  3. Step 3: Cross multiply
    13,801.17x = 19,046.38 × 8,139.23
  4. Step 4: Simplify right side
    13,801.17x = 155,022,813.75
  5. Step 5: Solve for x
    x = 155,022,813.75/13,801.17
  6. Step 6: Final answer
    x = 11,232.59

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Double scale
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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.