Home / 15,412.44-21,290.94-12,264.60

Finding the Fourth Proportional to 15,412.44, 21,290.94 and 12,264.60

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Solution

The fourth proportional to 15,412.44, 21,290.94 and 12,264.60 is: 16,942.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,412.44 : 21,290.94 = 12,264.60 : x
  2. Step 2: Convert to fraction form
    15,412.44/21,290.94 = 12,264.60/x
  3. Step 3: Cross multiply
    15,412.44x = 21,290.94 × 12,264.60
  4. Step 4: Simplify right side
    15,412.44x = 261,124,862.72
  5. Step 5: Solve for x
    x = 261,124,862.72/15,412.44
  6. Step 6: Final answer
    x = 16,942.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.