Home / 12,215.03-18,323.09-3,450.63

Finding the Fourth Proportional to 12,215.03, 18,323.09 and 3,450.63

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Solution

The fourth proportional to 12,215.03, 18,323.09 and 3,450.63 is: 5,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215.03 : 18,323.09 = 3,450.63 : x
  2. Step 2: Convert to fraction form
    12,215.03/18,323.09 = 3,450.63/x
  3. Step 3: Cross multiply
    12,215.03x = 18,323.09 × 3,450.63
  4. Step 4: Simplify right side
    12,215.03x = 63,226,186.79
  5. Step 5: Solve for x
    x = 63,226,186.79/12,215.03
  6. Step 6: Final answer
    x = 5,176.10

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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.