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Finding the Fourth Proportional to 6,644.55, 9,966.84 and 6,238.59

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Solution

The fourth proportional to 6,644.55, 9,966.84 and 6,238.59 is: 9,357.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,644.55 : 9,966.84 = 6,238.59 : x
  2. Step 2: Convert to fraction form
    6,644.55/9,966.84 = 6,238.59/x
  3. Step 3: Cross multiply
    6,644.55x = 9,966.84 × 6,238.59
  4. Step 4: Simplify right side
    6,644.55x = 62,178,967.59
  5. Step 5: Solve for x
    x = 62,178,967.59/6,644.55
  6. Step 6: Final answer
    x = 9,357.89

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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.