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Finding the Fourth Proportional to 8,922.03, 13,386.15 and 3,992.19

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Solution

The fourth proportional to 8,922.03, 13,386.15 and 3,992.19 is: 5,989.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.03 : 13,386.15 = 3,992.19 : x
  2. Step 2: Convert to fraction form
    8,922.03/13,386.15 = 3,992.19/x
  3. Step 3: Cross multiply
    8,922.03x = 13,386.15 × 3,992.19
  4. Step 4: Simplify right side
    8,922.03x = 53,440,054.17
  5. Step 5: Solve for x
    x = 53,440,054.17/8,922.03
  6. Step 6: Final answer
    x = 5,989.67

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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.