Home / 12,205.74-18,307.38-8,282.16

Finding the Fourth Proportional to 12,205.74, 18,307.38 and 8,282.16

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Solution

The fourth proportional to 12,205.74, 18,307.38 and 8,282.16 is: 12,422.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,205.74 : 18,307.38 = 8,282.16 : x
  2. Step 2: Convert to fraction form
    12,205.74/18,307.38 = 8,282.16/x
  3. Step 3: Cross multiply
    12,205.74x = 18,307.38 × 8,282.16
  4. Step 4: Simplify right side
    12,205.74x = 151,624,650.34
  5. Step 5: Solve for x
    x = 151,624,650.34/12,205.74
  6. Step 6: Final answer
    x = 12,422.41

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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.