Home / 12,222.08-16,866.40-6,633.12

Finding the Fourth Proportional to 12,222.08, 16,866.40 and 6,633.12

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Solution

The fourth proportional to 12,222.08, 16,866.40 and 6,633.12 is: 9,153.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.08 : 16,866.40 = 6,633.12 : x
  2. Step 2: Convert to fraction form
    12,222.08/16,866.40 = 6,633.12/x
  3. Step 3: Cross multiply
    12,222.08x = 16,866.40 × 6,633.12
  4. Step 4: Simplify right side
    12,222.08x = 111,876,855.17
  5. Step 5: Solve for x
    x = 111,876,855.17/12,222.08
  6. Step 6: Final answer
    x = 9,153.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.