Home / 12,889.94-19,333.69-3,529.58

Finding the Fourth Proportional to 12,889.94, 19,333.69 and 3,529.58

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Solution

The fourth proportional to 12,889.94, 19,333.69 and 3,529.58 is: 5,294.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889.94 : 19,333.69 = 3,529.58 : x
  2. Step 2: Convert to fraction form
    12,889.94/19,333.69 = 3,529.58/x
  3. Step 3: Cross multiply
    12,889.94x = 19,333.69 × 3,529.58
  4. Step 4: Simplify right side
    12,889.94x = 68,239,700.06
  5. Step 5: Solve for x
    x = 68,239,700.06/12,889.94
  6. Step 6: Final answer
    x = 5,294.03

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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.