Home / 11,216.20-16,753.61-10,905.16

Finding the Fourth Proportional to 11,216.20, 16,753.61 and 10,905.16

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Solution

The fourth proportional to 11,216.20, 16,753.61 and 10,905.16 is: 16,289.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216.20 : 16,753.61 = 10,905.16 : x
  2. Step 2: Convert to fraction form
    11,216.20/16,753.61 = 10,905.16/x
  3. Step 3: Cross multiply
    11,216.20x = 16,753.61 × 10,905.16
  4. Step 4: Simplify right side
    11,216.20x = 182,700,797.63
  5. Step 5: Solve for x
    x = 182,700,797.63/11,216.20
  6. Step 6: Final answer
    x = 16,289.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.