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Finding the Fourth Proportional to 6,453.20, 8,890.09 and 6,065.62

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Solution

The fourth proportional to 6,453.20, 8,890.09 and 6,065.62 is: 8,356.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,453.20 : 8,890.09 = 6,065.62 : x
  2. Step 2: Convert to fraction form
    6,453.20/8,890.09 = 6,065.62/x
  3. Step 3: Cross multiply
    6,453.20x = 8,890.09 × 6,065.62
  4. Step 4: Simplify right side
    6,453.20x = 53,923,870.32
  5. Step 5: Solve for x
    x = 53,923,870.32/6,453.20
  6. Step 6: Final answer
    x = 8,356.14

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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.