Home / 15,085.98-20,838.60-12,576.33

Finding the Fourth Proportional to 15,085.98, 20,838.60 and 12,576.33

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Solution

The fourth proportional to 15,085.98, 20,838.60 and 12,576.33 is: 17,371.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,085.98 : 20,838.60 = 12,576.33 : x
  2. Step 2: Convert to fraction form
    15,085.98/20,838.60 = 12,576.33/x
  3. Step 3: Cross multiply
    15,085.98x = 20,838.60 × 12,576.33
  4. Step 4: Simplify right side
    15,085.98x = 262,073,110.34
  5. Step 5: Solve for x
    x = 262,073,110.34/15,085.98
  6. Step 6: Final answer
    x = 17,371.96

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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.