Home / 18,771.25-28,134.41-8,762.53

Finding the Fourth Proportional to 18,771.25, 28,134.41 and 8,762.53

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Solution

The fourth proportional to 18,771.25, 28,134.41 and 8,762.53 is: 13,133.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,771.25 : 28,134.41 = 8,762.53 : x
  2. Step 2: Convert to fraction form
    18,771.25/28,134.41 = 8,762.53/x
  3. Step 3: Cross multiply
    18,771.25x = 28,134.41 × 8,762.53
  4. Step 4: Simplify right side
    18,771.25x = 246,528,567.84
  5. Step 5: Solve for x
    x = 246,528,567.84/18,771.25
  6. Step 6: Final answer
    x = 13,133.31

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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.