Home / 13,933.81-19,237.67-8,634.25

Finding the Fourth Proportional to 13,933.81, 19,237.67 and 8,634.25

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Solution

The fourth proportional to 13,933.81, 19,237.67 and 8,634.25 is: 11,920.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.81 : 19,237.67 = 8,634.25 : x
  2. Step 2: Convert to fraction form
    13,933.81/19,237.67 = 8,634.25/x
  3. Step 3: Cross multiply
    13,933.81x = 19,237.67 × 8,634.25
  4. Step 4: Simplify right side
    13,933.81x = 166,102,852.20
  5. Step 5: Solve for x
    x = 166,102,852.20/13,933.81
  6. Step 6: Final answer
    x = 11,920.85

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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.