Home / 12,209.90-18,314.94-8,076.02

Finding the Fourth Proportional to 12,209.90, 18,314.94 and 8,076.02

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Solution

The fourth proportional to 12,209.90, 18,314.94 and 8,076.02 is: 12,114.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209.90 : 18,314.94 = 8,076.02 : x
  2. Step 2: Convert to fraction form
    12,209.90/18,314.94 = 8,076.02/x
  3. Step 3: Cross multiply
    12,209.90x = 18,314.94 × 8,076.02
  4. Step 4: Simplify right side
    12,209.90x = 147,911,821.74
  5. Step 5: Solve for x
    x = 147,911,821.74/12,209.90
  6. Step 6: Final answer
    x = 12,114.09

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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.