Home / 12,020.03-18,031.07-3,136.54

Finding the Fourth Proportional to 12,020.03, 18,031.07 and 3,136.54

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Solution

The fourth proportional to 12,020.03, 18,031.07 and 3,136.54 is: 4,705.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,020.03 : 18,031.07 = 3,136.54 : x
  2. Step 2: Convert to fraction form
    12,020.03/18,031.07 = 3,136.54/x
  3. Step 3: Cross multiply
    12,020.03x = 18,031.07 × 3,136.54
  4. Step 4: Simplify right side
    12,020.03x = 56,555,172.30
  5. Step 5: Solve for x
    x = 56,555,172.30/12,020.03
  6. Step 6: Final answer
    x = 4,705.08

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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.