Home / 13,991.28-19,309.14-7,704.84

Finding the Fourth Proportional to 13,991.28, 19,309.14 and 7,704.84

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Solution

The fourth proportional to 13,991.28, 19,309.14 and 7,704.84 is: 10,633.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991.28 : 19,309.14 = 7,704.84 : x
  2. Step 2: Convert to fraction form
    13,991.28/19,309.14 = 7,704.84/x
  3. Step 3: Cross multiply
    13,991.28x = 19,309.14 × 7,704.84
  4. Step 4: Simplify right side
    13,991.28x = 148,773,834.24
  5. Step 5: Solve for x
    x = 148,773,834.24/13,991.28
  6. Step 6: Final answer
    x = 10,633.33

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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.