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Finding the Fourth Proportional to 18,851.25, 28,289.84 and 6,539.25

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Solution

The fourth proportional to 18,851.25, 28,289.84 and 6,539.25 is: 9,813.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,851.25 : 28,289.84 = 6,539.25 : x
  2. Step 2: Convert to fraction form
    18,851.25/28,289.84 = 6,539.25/x
  3. Step 3: Cross multiply
    18,851.25x = 28,289.84 × 6,539.25
  4. Step 4: Simplify right side
    18,851.25x = 184,994,303.52
  5. Step 5: Solve for x
    x = 184,994,303.52/18,851.25
  6. Step 6: Final answer
    x = 9,813.37

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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.