Home / 12,222.24-18,322.08-4,428.96

Finding the Fourth Proportional to 12,222.24, 18,322.08 and 4,428.96

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Solution

The fourth proportional to 12,222.24, 18,322.08 and 4,428.96 is: 6,639.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.24 : 18,322.08 = 4,428.96 : x
  2. Step 2: Convert to fraction form
    12,222.24/18,322.08 = 4,428.96/x
  3. Step 3: Cross multiply
    12,222.24x = 18,322.08 × 4,428.96
  4. Step 4: Simplify right side
    12,222.24x = 81,147,759.44
  5. Step 5: Solve for x
    x = 81,147,759.44/12,222.24
  6. Step 6: Final answer
    x = 6,639.35

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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.