Home / 8,511.99-12,767.93-3,317.86

Finding the Fourth Proportional to 8,511.99, 12,767.93 and 3,317.86

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Solution

The fourth proportional to 8,511.99, 12,767.93 and 3,317.86 is: 4,976.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,511.99 : 12,767.93 = 3,317.86 : x
  2. Step 2: Convert to fraction form
    8,511.99/12,767.93 = 3,317.86/x
  3. Step 3: Cross multiply
    8,511.99x = 12,767.93 × 3,317.86
  4. Step 4: Simplify right side
    8,511.99x = 42,362,216.04
  5. Step 5: Solve for x
    x = 42,362,216.04/8,511.99
  6. Step 6: Final answer
    x = 4,976.77

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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.