Home / 11,059.20-16,562.88-8,441.28

Finding the Fourth Proportional to 11,059.20, 16,562.88 and 8,441.28

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Solution

The fourth proportional to 11,059.20, 16,562.88 and 8,441.28 is: 12,642.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,059.20 : 16,562.88 = 8,441.28 : x
  2. Step 2: Convert to fraction form
    11,059.20/16,562.88 = 8,441.28/x
  3. Step 3: Cross multiply
    11,059.20x = 16,562.88 × 8,441.28
  4. Step 4: Simplify right side
    11,059.20x = 139,811,907.69
  5. Step 5: Solve for x
    x = 139,811,907.69/11,059.20
  6. Step 6: Final answer
    x = 12,642.14

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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.