Home / 15,407.54-21,257.44-12,167.07

Finding the Fourth Proportional to 15,407.54, 21,257.44 and 12,167.07

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Solution

The fourth proportional to 15,407.54, 21,257.44 and 12,167.07 is: 16,786.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,407.54 : 21,257.44 = 12,167.07 : x
  2. Step 2: Convert to fraction form
    15,407.54/21,257.44 = 12,167.07/x
  3. Step 3: Cross multiply
    15,407.54x = 21,257.44 × 12,167.07
  4. Step 4: Simplify right side
    15,407.54x = 258,640,760.50
  5. Step 5: Solve for x
    x = 258,640,760.50/15,407.54
  6. Step 6: Final answer
    x = 16,786.64

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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.