Home / 8,989.96-13,485.66-3,445.96

Finding the Fourth Proportional to 8,989.96, 13,485.66 and 3,445.96

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Solution

The fourth proportional to 8,989.96, 13,485.66 and 3,445.96 is: 5,169.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.96 : 13,485.66 = 3,445.96 : x
  2. Step 2: Convert to fraction form
    8,989.96/13,485.66 = 3,445.96/x
  3. Step 3: Cross multiply
    8,989.96x = 13,485.66 × 3,445.96
  4. Step 4: Simplify right side
    8,989.96x = 46,471,044.93
  5. Step 5: Solve for x
    x = 46,471,044.93/8,989.96
  6. Step 6: Final answer
    x = 5,169.22

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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.