Home / 12,231.90-18,323.55-6,675.30

Finding the Fourth Proportional to 12,231.90, 18,323.55 and 6,675.30

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Solution

The fourth proportional to 12,231.90, 18,323.55 and 6,675.30 is: 9,999.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.90 : 18,323.55 = 6,675.30 : x
  2. Step 2: Convert to fraction form
    12,231.90/18,323.55 = 6,675.30/x
  3. Step 3: Cross multiply
    12,231.90x = 18,323.55 × 6,675.30
  4. Step 4: Simplify right side
    12,231.90x = 122,315,193.32
  5. Step 5: Solve for x
    x = 122,315,193.32/12,231.90
  6. Step 6: Final answer
    x = 9,999.69

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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.