Home / 8,909.70-13,361.67-6,450.18

Finding the Fourth Proportional to 8,909.70, 13,361.67 and 6,450.18

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Solution

The fourth proportional to 8,909.70, 13,361.67 and 6,450.18 is: 9,673.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.70 : 13,361.67 = 6,450.18 : x
  2. Step 2: Convert to fraction form
    8,909.70/13,361.67 = 6,450.18/x
  3. Step 3: Cross multiply
    8,909.70x = 13,361.67 × 6,450.18
  4. Step 4: Simplify right side
    8,909.70x = 86,185,176.60
  5. Step 5: Solve for x
    x = 86,185,176.60/8,909.70
  6. Step 6: Final answer
    x = 9,673.19

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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.