Home / 15,257.25-21,081.33-12,600.09

Finding the Fourth Proportional to 15,257.25, 21,081.33 and 12,600.09

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Solution

The fourth proportional to 15,257.25, 21,081.33 and 12,600.09 is: 17,409.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,257.25 : 21,081.33 = 12,600.09 : x
  2. Step 2: Convert to fraction form
    15,257.25/21,081.33 = 12,600.09/x
  3. Step 3: Cross multiply
    15,257.25x = 21,081.33 × 12,600.09
  4. Step 4: Simplify right side
    15,257.25x = 265,626,655.32
  5. Step 5: Solve for x
    x = 265,626,655.32/15,257.25
  6. Step 6: Final answer
    x = 17,409.86

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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.