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Finding the Fourth Proportional to 6,443.80, 9,672.90 and 6,020.80

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Solution

The fourth proportional to 6,443.80, 9,672.90 and 6,020.80 is: 9,037.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,443.80 : 9,672.90 = 6,020.80 : x
  2. Step 2: Convert to fraction form
    6,443.80/9,672.90 = 6,020.80/x
  3. Step 3: Cross multiply
    6,443.80x = 9,672.90 × 6,020.80
  4. Step 4: Simplify right side
    6,443.80x = 58,238,596.32
  5. Step 5: Solve for x
    x = 58,238,596.32/6,443.80
  6. Step 6: Final answer
    x = 9,037.93

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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.