Home / 19,814.19-27,343.89-11,856.75

Finding the Fourth Proportional to 19,814.19, 27,343.89 and 11,856.75

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Solution

The fourth proportional to 19,814.19, 27,343.89 and 11,856.75 is: 16,362.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,814.19 : 27,343.89 = 11,856.75 : x
  2. Step 2: Convert to fraction form
    19,814.19/27,343.89 = 11,856.75/x
  3. Step 3: Cross multiply
    19,814.19x = 27,343.89 × 11,856.75
  4. Step 4: Simplify right side
    19,814.19x = 324,209,667.76
  5. Step 5: Solve for x
    x = 324,209,667.76/19,814.19
  6. Step 6: Final answer
    x = 16,362.50

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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.