Home / 8,872.23-12,244.54-6,630.21

Finding the Fourth Proportional to 8,872.23, 12,244.54 and 6,630.21

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Solution

The fourth proportional to 8,872.23, 12,244.54 and 6,630.21 is: 9,150.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,872.23 : 12,244.54 = 6,630.21 : x
  2. Step 2: Convert to fraction form
    8,872.23/12,244.54 = 6,630.21/x
  3. Step 3: Cross multiply
    8,872.23x = 12,244.54 × 6,630.21
  4. Step 4: Simplify right side
    8,872.23x = 81,183,871.55
  5. Step 5: Solve for x
    x = 81,183,871.55/8,872.23
  6. Step 6: Final answer
    x = 9,150.33

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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.