Home / 12,922.08-19,381.04-3,685.92

Finding the Fourth Proportional to 12,922.08, 19,381.04 and 3,685.92

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Solution

The fourth proportional to 12,922.08, 19,381.04 and 3,685.92 is: 5,528.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922.08 : 19,381.04 = 3,685.92 : x
  2. Step 2: Convert to fraction form
    12,922.08/19,381.04 = 3,685.92/x
  3. Step 3: Cross multiply
    12,922.08x = 19,381.04 × 3,685.92
  4. Step 4: Simplify right side
    12,922.08x = 71,436,962.96
  5. Step 5: Solve for x
    x = 71,436,962.96/12,922.08
  6. Step 6: Final answer
    x = 5,528.29

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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.