Home / 13,998.25-19,317.68-7,711.03

Finding the Fourth Proportional to 13,998.25, 19,317.68 and 7,711.03

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Solution

The fourth proportional to 13,998.25, 19,317.68 and 7,711.03 is: 10,641.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.25 : 19,317.68 = 7,711.03 : x
  2. Step 2: Convert to fraction form
    13,998.25/19,317.68 = 7,711.03/x
  3. Step 3: Cross multiply
    13,998.25x = 19,317.68 × 7,711.03
  4. Step 4: Simplify right side
    13,998.25x = 148,959,210.01
  5. Step 5: Solve for x
    x = 148,959,210.01/13,998.25
  6. Step 6: Final answer
    x = 10,641.27

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Double scale
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Similar ratio
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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.