Home / 13,107.35-19,622.37-8,656.85

Finding the Fourth Proportional to 13,107.35, 19,622.37 and 8,656.85

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Solution

The fourth proportional to 13,107.35, 19,622.37 and 8,656.85 is: 12,959.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,107.35 : 19,622.37 = 8,656.85 : x
  2. Step 2: Convert to fraction form
    13,107.35/19,622.37 = 8,656.85/x
  3. Step 3: Cross multiply
    13,107.35x = 19,622.37 × 8,656.85
  4. Step 4: Simplify right side
    13,107.35x = 169,867,913.73
  5. Step 5: Solve for x
    x = 169,867,913.73/13,107.35
  6. Step 6: Final answer
    x = 12,959.75

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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.