Home / 8,861.65-13,292.10-3,315.03

Finding the Fourth Proportional to 8,861.65, 13,292.10 and 3,315.03

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Solution

The fourth proportional to 8,861.65, 13,292.10 and 3,315.03 is: 4,972.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.65 : 13,292.10 = 3,315.03 : x
  2. Step 2: Convert to fraction form
    8,861.65/13,292.10 = 3,315.03/x
  3. Step 3: Cross multiply
    8,861.65x = 13,292.10 × 3,315.03
  4. Step 4: Simplify right side
    8,861.65x = 44,063,660.42
  5. Step 5: Solve for x
    x = 44,063,660.42/8,861.65
  6. Step 6: Final answer
    x = 4,972.40

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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.