Home / 13,107.79-19,664.79-5,713.57

Finding the Fourth Proportional to 13,107.79, 19,664.79 and 5,713.57

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Solution

The fourth proportional to 13,107.79, 19,664.79 and 5,713.57 is: 8,571.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,107.79 : 19,664.79 = 5,713.57 : x
  2. Step 2: Convert to fraction form
    13,107.79/19,664.79 = 5,713.57/x
  3. Step 3: Cross multiply
    13,107.79x = 19,664.79 × 5,713.57
  4. Step 4: Simplify right side
    13,107.79x = 112,356,027.31
  5. Step 5: Solve for x
    x = 112,356,027.31/13,107.79
  6. Step 6: Final answer
    x = 8,571.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.