Home / 13,919.94-19,207.42-7,950.34

Finding the Fourth Proportional to 13,919.94, 19,207.42 and 7,950.34

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Solution

The fourth proportional to 13,919.94, 19,207.42 and 7,950.34 is: 10,970.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.94 : 19,207.42 = 7,950.34 : x
  2. Step 2: Convert to fraction form
    13,919.94/19,207.42 = 7,950.34/x
  3. Step 3: Cross multiply
    13,919.94x = 19,207.42 × 7,950.34
  4. Step 4: Simplify right side
    13,919.94x = 152,705,519.52
  5. Step 5: Solve for x
    x = 152,705,519.52/13,919.94
  6. Step 6: Final answer
    x = 10,970.27

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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.