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Finding the Fourth Proportional to 6,404.45, 9,588.45 and 6,222.20

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Solution

The fourth proportional to 6,404.45, 9,588.45 and 6,222.20 is: 9,315.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,404.45 : 9,588.45 = 6,222.20 : x
  2. Step 2: Convert to fraction form
    6,404.45/9,588.45 = 6,222.20/x
  3. Step 3: Cross multiply
    6,404.45x = 9,588.45 × 6,222.20
  4. Step 4: Simplify right side
    6,404.45x = 59,661,253.59
  5. Step 5: Solve for x
    x = 59,661,253.59/6,404.45
  6. Step 6: Final answer
    x = 9,315.59

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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.