Home / 18,293.16-25,240.56-11,919.12

Finding the Fourth Proportional to 18,293.16, 25,240.56 and 11,919.12

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Solution

The fourth proportional to 18,293.16, 25,240.56 and 11,919.12 is: 16,445.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,293.16 : 25,240.56 = 11,919.12 : x
  2. Step 2: Convert to fraction form
    18,293.16/25,240.56 = 11,919.12/x
  3. Step 3: Cross multiply
    18,293.16x = 25,240.56 × 11,919.12
  4. Step 4: Simplify right side
    18,293.16x = 300,845,263.51
  5. Step 5: Solve for x
    x = 300,845,263.51/18,293.16
  6. Step 6: Final answer
    x = 16,445.78

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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.