Home / 8,638.23-12,958.70-2,714.65

Finding the Fourth Proportional to 8,638.23, 12,958.70 and 2,714.65

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Solution

The fourth proportional to 8,638.23, 12,958.70 and 2,714.65 is: 4,072.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,638.23 : 12,958.70 = 2,714.65 : x
  2. Step 2: Convert to fraction form
    8,638.23/12,958.70 = 2,714.65/x
  3. Step 3: Cross multiply
    8,638.23x = 12,958.70 × 2,714.65
  4. Step 4: Simplify right side
    8,638.23x = 35,178,334.96
  5. Step 5: Solve for x
    x = 35,178,334.96/8,638.23
  6. Step 6: Final answer
    x = 4,072.40

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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.