Home / 8,968.08-13,446.05-3,121.50

Finding the Fourth Proportional to 8,968.08, 13,446.05 and 3,121.50

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Solution

The fourth proportional to 8,968.08, 13,446.05 and 3,121.50 is: 4,680.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.08 : 13,446.05 = 3,121.50 : x
  2. Step 2: Convert to fraction form
    8,968.08/13,446.05 = 3,121.50/x
  3. Step 3: Cross multiply
    8,968.08x = 13,446.05 × 3,121.50
  4. Step 4: Simplify right side
    8,968.08x = 41,971,829.47
  5. Step 5: Solve for x
    x = 41,971,829.47/8,968.08
  6. Step 6: Final answer
    x = 4,680.14

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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.