Home / 13,950.84-20,936.79-8,387.22

Finding the Fourth Proportional to 13,950.84, 20,936.79 and 8,387.22

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Solution

The fourth proportional to 13,950.84, 20,936.79 and 8,387.22 is: 12,587.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,950.84 : 20,936.79 = 8,387.22 : x
  2. Step 2: Convert to fraction form
    13,950.84/20,936.79 = 8,387.22/x
  3. Step 3: Cross multiply
    13,950.84x = 20,936.79 × 8,387.22
  4. Step 4: Simplify right side
    13,950.84x = 175,601,463.82
  5. Step 5: Solve for x
    x = 175,601,463.82/13,950.84
  6. Step 6: Final answer
    x = 12,587.16

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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.