Home / 14,222.48-19,636.72-9,198.86

Finding the Fourth Proportional to 14,222.48, 19,636.72 and 9,198.86

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Solution

The fourth proportional to 14,222.48, 19,636.72 and 9,198.86 is: 12,700.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,222.48 : 19,636.72 = 9,198.86 : x
  2. Step 2: Convert to fraction form
    14,222.48/19,636.72 = 9,198.86/x
  3. Step 3: Cross multiply
    14,222.48x = 19,636.72 × 9,198.86
  4. Step 4: Simplify right side
    14,222.48x = 180,635,438.14
  5. Step 5: Solve for x
    x = 180,635,438.14/14,222.48
  6. Step 6: Final answer
    x = 12,700.70

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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.