Home / 12,376.40-18,564.80-3,611.25

Finding the Fourth Proportional to 12,376.40, 18,564.80 and 3,611.25

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Solution

The fourth proportional to 12,376.40, 18,564.80 and 3,611.25 is: 5,416.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.40 : 18,564.80 = 3,611.25 : x
  2. Step 2: Convert to fraction form
    12,376.40/18,564.80 = 3,611.25/x
  3. Step 3: Cross multiply
    12,376.40x = 18,564.80 × 3,611.25
  4. Step 4: Simplify right side
    12,376.40x = 67,042,115.94
  5. Step 5: Solve for x
    x = 67,042,115.94/12,376.40
  6. Step 6: Final answer
    x = 5,416.93

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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.