Home / 12,376.57-18,564.55-3,611.56

Finding the Fourth Proportional to 12,376.57, 18,564.55 and 3,611.56

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Solution

The fourth proportional to 12,376.57, 18,564.55 and 3,611.56 is: 5,417.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.57 : 18,564.55 = 3,611.56 : x
  2. Step 2: Convert to fraction form
    12,376.57/18,564.55 = 3,611.56/x
  3. Step 3: Cross multiply
    12,376.57x = 18,564.55 × 3,611.56
  4. Step 4: Simplify right side
    12,376.57x = 67,046,965.57
  5. Step 5: Solve for x
    x = 67,046,965.57/12,376.57
  6. Step 6: Final answer
    x = 5,417.25

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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.