Home / 12,222.60-18,334.80-4,430.40

Finding the Fourth Proportional to 12,222.60, 18,334.80 and 4,430.40

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Solution

The fourth proportional to 12,222.60, 18,334.80 and 4,430.40 is: 6,645.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.60 : 18,334.80 = 4,430.40 : x
  2. Step 2: Convert to fraction form
    12,222.60/18,334.80 = 4,430.40/x
  3. Step 3: Cross multiply
    12,222.60x = 18,334.80 × 4,430.40
  4. Step 4: Simplify right side
    12,222.60x = 81,230,497.92
  5. Step 5: Solve for x
    x = 81,230,497.92/12,222.60
  6. Step 6: Final answer
    x = 6,645.93

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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.