Home / 8,969.46-13,454.66-3,421.77

Finding the Fourth Proportional to 8,969.46, 13,454.66 and 3,421.77

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Solution

The fourth proportional to 8,969.46, 13,454.66 and 3,421.77 is: 5,132.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,969.46 : 13,454.66 = 3,421.77 : x
  2. Step 2: Convert to fraction form
    8,969.46/13,454.66 = 3,421.77/x
  3. Step 3: Cross multiply
    8,969.46x = 13,454.66 × 3,421.77
  4. Step 4: Simplify right side
    8,969.46x = 46,038,734.84
  5. Step 5: Solve for x
    x = 46,038,734.84/8,969.46
  6. Step 6: Final answer
    x = 5,132.83

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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.