Home / 8,412.30-12,621.20-2,869.16

Finding the Fourth Proportional to 8,412.30, 12,621.20 and 2,869.16

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Solution

The fourth proportional to 8,412.30, 12,621.20 and 2,869.16 is: 4,304.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.30 : 12,621.20 = 2,869.16 : x
  2. Step 2: Convert to fraction form
    8,412.30/12,621.20 = 2,869.16/x
  3. Step 3: Cross multiply
    8,412.30x = 12,621.20 × 2,869.16
  4. Step 4: Simplify right side
    8,412.30x = 36,212,164.74
  5. Step 5: Solve for x
    x = 36,212,164.74/8,412.30
  6. Step 6: Final answer
    x = 4,304.67

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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.