Home / 12,205.04-18,308.08-3,440.80

Finding the Fourth Proportional to 12,205.04, 18,308.08 and 3,440.80

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Solution

The fourth proportional to 12,205.04, 18,308.08 and 3,440.80 is: 5,161.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,205.04 : 18,308.08 = 3,440.80 : x
  2. Step 2: Convert to fraction form
    12,205.04/18,308.08 = 3,440.80/x
  3. Step 3: Cross multiply
    12,205.04x = 18,308.08 × 3,440.80
  4. Step 4: Simplify right side
    12,205.04x = 62,994,441.66
  5. Step 5: Solve for x
    x = 62,994,441.66/12,205.04
  6. Step 6: Final answer
    x = 5,161.35

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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.