Home / 12,539.80-18,808.98-3,774.52

Finding the Fourth Proportional to 12,539.80, 18,808.98 and 3,774.52

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Solution

The fourth proportional to 12,539.80, 18,808.98 and 3,774.52 is: 5,661.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539.80 : 18,808.98 = 3,774.52 : x
  2. Step 2: Convert to fraction form
    12,539.80/18,808.98 = 3,774.52/x
  3. Step 3: Cross multiply
    12,539.80x = 18,808.98 × 3,774.52
  4. Step 4: Simplify right side
    12,539.80x = 70,994,871.19
  5. Step 5: Solve for x
    x = 70,994,871.19/12,539.80
  6. Step 6: Final answer
    x = 5,661.56

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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.