Home / 12,266.40-18,375.30-7,321.35

Finding the Fourth Proportional to 12,266.40, 18,375.30 and 7,321.35

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Solution

The fourth proportional to 12,266.40, 18,375.30 and 7,321.35 is: 10,967.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,266.40 : 18,375.30 = 7,321.35 : x
  2. Step 2: Convert to fraction form
    12,266.40/18,375.30 = 7,321.35/x
  3. Step 3: Cross multiply
    12,266.40x = 18,375.30 × 7,321.35
  4. Step 4: Simplify right side
    12,266.40x = 134,532,002.66
  5. Step 5: Solve for x
    x = 134,532,002.66/12,266.40
  6. Step 6: Final answer
    x = 10,967.52

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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.