Home / 8,311.12-12,467.93-2,686.91

Finding the Fourth Proportional to 8,311.12, 12,467.93 and 2,686.91

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Solution

The fourth proportional to 8,311.12, 12,467.93 and 2,686.91 is: 4,030.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.12 : 12,467.93 = 2,686.91 : x
  2. Step 2: Convert to fraction form
    8,311.12/12,467.93 = 2,686.91/x
  3. Step 3: Cross multiply
    8,311.12x = 12,467.93 × 2,686.91
  4. Step 4: Simplify right side
    8,311.12x = 33,500,192.36
  5. Step 5: Solve for x
    x = 33,500,192.36/8,311.12
  6. Step 6: Final answer
    x = 4,030.77

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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.