Home / 13,906.16-19,190.28-7,618.58

Finding the Fourth Proportional to 13,906.16, 19,190.28 and 7,618.58

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Solution

The fourth proportional to 13,906.16, 19,190.28 and 7,618.58 is: 10,513.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.16 : 19,190.28 = 7,618.58 : x
  2. Step 2: Convert to fraction form
    13,906.16/19,190.28 = 7,618.58/x
  3. Step 3: Cross multiply
    13,906.16x = 19,190.28 × 7,618.58
  4. Step 4: Simplify right side
    13,906.16x = 146,202,683.40
  5. Step 5: Solve for x
    x = 146,202,683.40/13,906.16
  6. Step 6: Final answer
    x = 10,513.52

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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.