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Finding the Fourth Proportional to 15,215.82, 22,804.88 and 8,622.01

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Solution

The fourth proportional to 15,215.82, 22,804.88 and 8,622.01 is: 12,922.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,215.82 : 22,804.88 = 8,622.01 : x
  2. Step 2: Convert to fraction form
    15,215.82/22,804.88 = 8,622.01/x
  3. Step 3: Cross multiply
    15,215.82x = 22,804.88 × 8,622.01
  4. Step 4: Simplify right side
    15,215.82x = 196,623,903.41
  5. Step 5: Solve for x
    x = 196,623,903.41/15,215.82
  6. Step 6: Final answer
    x = 12,922.33

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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.