Home / 12,815.45-19,225.23-4,052.42

Finding the Fourth Proportional to 12,815.45, 19,225.23 and 4,052.42

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Solution

The fourth proportional to 12,815.45, 19,225.23 and 4,052.42 is: 6,079.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,815.45 : 19,225.23 = 4,052.42 : x
  2. Step 2: Convert to fraction form
    12,815.45/19,225.23 = 4,052.42/x
  3. Step 3: Cross multiply
    12,815.45x = 19,225.23 × 4,052.42
  4. Step 4: Simplify right side
    12,815.45x = 77,908,706.56
  5. Step 5: Solve for x
    x = 77,908,706.56/12,815.45
  6. Step 6: Final answer
    x = 6,079.28

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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.