Home / 8,108.06-12,153.21-3,172.28

Finding the Fourth Proportional to 8,108.06, 12,153.21 and 3,172.28

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Solution

The fourth proportional to 8,108.06, 12,153.21 and 3,172.28 is: 4,754.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.06 : 12,153.21 = 3,172.28 : x
  2. Step 2: Convert to fraction form
    8,108.06/12,153.21 = 3,172.28/x
  3. Step 3: Cross multiply
    8,108.06x = 12,153.21 × 3,172.28
  4. Step 4: Simplify right side
    8,108.06x = 38,553,312.36
  5. Step 5: Solve for x
    x = 38,553,312.36/8,108.06
  6. Step 6: Final answer
    x = 4,754.94

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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.