Home / 12,408.93-18,611.56-5,013.22

Finding the Fourth Proportional to 12,408.93, 18,611.56 and 5,013.22

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Solution

The fourth proportional to 12,408.93, 18,611.56 and 5,013.22 is: 7,519.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.93 : 18,611.56 = 5,013.22 : x
  2. Step 2: Convert to fraction form
    12,408.93/18,611.56 = 5,013.22/x
  3. Step 3: Cross multiply
    12,408.93x = 18,611.56 × 5,013.22
  4. Step 4: Simplify right side
    12,408.93x = 93,303,844.82
  5. Step 5: Solve for x
    x = 93,303,844.82/12,408.93
  6. Step 6: Final answer
    x = 7,519.09

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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.