Home / 8,108.63-12,158.62-2,485.31

Finding the Fourth Proportional to 8,108.63, 12,158.62 and 2,485.31

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Solution

The fourth proportional to 8,108.63, 12,158.62 and 2,485.31 is: 3,726.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.63 : 12,158.62 = 2,485.31 : x
  2. Step 2: Convert to fraction form
    8,108.63/12,158.62 = 2,485.31/x
  3. Step 3: Cross multiply
    8,108.63x = 12,158.62 × 2,485.31
  4. Step 4: Simplify right side
    8,108.63x = 30,217,955.24
  5. Step 5: Solve for x
    x = 30,217,955.24/8,108.63
  6. Step 6: Final answer
    x = 3,726.64

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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.