Home / 19,119.56-26,391.18-12,393.32

Finding the Fourth Proportional to 19,119.56, 26,391.18 and 12,393.32

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Solution

The fourth proportional to 19,119.56, 26,391.18 and 12,393.32 is: 17,106.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119.56 : 26,391.18 = 12,393.32 : x
  2. Step 2: Convert to fraction form
    19,119.56/26,391.18 = 12,393.32/x
  3. Step 3: Cross multiply
    19,119.56x = 26,391.18 × 12,393.32
  4. Step 4: Simplify right side
    19,119.56x = 327,074,338.92
  5. Step 5: Solve for x
    x = 327,074,338.92/19,119.56
  6. Step 6: Final answer
    x = 17,106.79

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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.