Home / 13,969.36-20,956.98-4,107.81

Finding the Fourth Proportional to 13,969.36, 20,956.98 and 4,107.81

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Solution

The fourth proportional to 13,969.36, 20,956.98 and 4,107.81 is: 6,162.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,969.36 : 20,956.98 = 4,107.81 : x
  2. Step 2: Convert to fraction form
    13,969.36/20,956.98 = 4,107.81/x
  3. Step 3: Cross multiply
    13,969.36x = 20,956.98 × 4,107.81
  4. Step 4: Simplify right side
    13,969.36x = 86,087,362.90
  5. Step 5: Solve for x
    x = 86,087,362.90/13,969.36
  6. Step 6: Final answer
    x = 6,162.58

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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.