Home / 12,826.20-17,697.90-8,106.84

Finding the Fourth Proportional to 12,826.20, 17,697.90 and 8,106.84

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Solution

The fourth proportional to 12,826.20, 17,697.90 and 8,106.84 is: 11,186.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,826.20 : 17,697.90 = 8,106.84 : x
  2. Step 2: Convert to fraction form
    12,826.20/17,697.90 = 8,106.84/x
  3. Step 3: Cross multiply
    12,826.20x = 17,697.90 × 8,106.84
  4. Step 4: Simplify right side
    12,826.20x = 143,474,043.64
  5. Step 5: Solve for x
    x = 143,474,043.64/12,826.20
  6. Step 6: Final answer
    x = 11,186.01

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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.