Home / 12,153.65-18,222.37-4,361.45

Finding the Fourth Proportional to 12,153.65, 18,222.37 and 4,361.45

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Solution

The fourth proportional to 12,153.65, 18,222.37 and 4,361.45 is: 6,539.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,153.65 : 18,222.37 = 4,361.45 : x
  2. Step 2: Convert to fraction form
    12,153.65/18,222.37 = 4,361.45/x
  3. Step 3: Cross multiply
    12,153.65x = 18,222.37 × 4,361.45
  4. Step 4: Simplify right side
    12,153.65x = 79,475,853.62
  5. Step 5: Solve for x
    x = 79,475,853.62/12,153.65
  6. Step 6: Final answer
    x = 6,539.26

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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.