Home / 8,660.75-12,993.33-2,420.77

Finding the Fourth Proportional to 8,660.75, 12,993.33 and 2,420.77

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Solution

The fourth proportional to 8,660.75, 12,993.33 and 2,420.77 is: 3,631.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,660.75 : 12,993.33 = 2,420.77 : x
  2. Step 2: Convert to fraction form
    8,660.75/12,993.33 = 2,420.77/x
  3. Step 3: Cross multiply
    8,660.75x = 12,993.33 × 2,420.77
  4. Step 4: Simplify right side
    8,660.75x = 31,453,798.50
  5. Step 5: Solve for x
    x = 31,453,798.50/8,660.75
  6. Step 6: Final answer
    x = 3,631.76

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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.