Home / 8,419.23-12,630.21-2,872.01

Finding the Fourth Proportional to 8,419.23, 12,630.21 and 2,872.01

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Solution

The fourth proportional to 8,419.23, 12,630.21 and 2,872.01 is: 4,308.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.23 : 12,630.21 = 2,872.01 : x
  2. Step 2: Convert to fraction form
    8,419.23/12,630.21 = 2,872.01/x
  3. Step 3: Cross multiply
    8,419.23x = 12,630.21 × 2,872.01
  4. Step 4: Simplify right side
    8,419.23x = 36,274,089.42
  5. Step 5: Solve for x
    x = 36,274,089.42/8,419.23
  6. Step 6: Final answer
    x = 4,308.48

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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.