Home / 19,342.16-26,687.40-11,383.76

Finding the Fourth Proportional to 19,342.16, 26,687.40 and 11,383.76

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Solution

The fourth proportional to 19,342.16, 26,687.40 and 11,383.76 is: 15,706.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,342.16 : 26,687.40 = 11,383.76 : x
  2. Step 2: Convert to fraction form
    19,342.16/26,687.40 = 11,383.76/x
  3. Step 3: Cross multiply
    19,342.16x = 26,687.40 × 11,383.76
  4. Step 4: Simplify right side
    19,342.16x = 303,802,956.62
  5. Step 5: Solve for x
    x = 303,802,956.62/19,342.16
  6. Step 6: Final answer
    x = 15,706.78

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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.