Home / 8,809.41-12,163.36-5,671.06

Finding the Fourth Proportional to 8,809.41, 12,163.36 and 5,671.06

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Solution

The fourth proportional to 8,809.41, 12,163.36 and 5,671.06 is: 7,830.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.41 : 12,163.36 = 5,671.06 : x
  2. Step 2: Convert to fraction form
    8,809.41/12,163.36 = 5,671.06/x
  3. Step 3: Cross multiply
    8,809.41x = 12,163.36 × 5,671.06
  4. Step 4: Simplify right side
    8,809.41x = 68,979,166.65
  5. Step 5: Solve for x
    x = 68,979,166.65/8,809.41
  6. Step 6: Final answer
    x = 7,830.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.