Home / 15,219.41-21,002.67-8,504.96

Finding the Fourth Proportional to 15,219.41, 21,002.67 and 8,504.96

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Solution

The fourth proportional to 15,219.41, 21,002.67 and 8,504.96 is: 11,736.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,219.41 : 21,002.67 = 8,504.96 : x
  2. Step 2: Convert to fraction form
    15,219.41/21,002.67 = 8,504.96/x
  3. Step 3: Cross multiply
    15,219.41x = 21,002.67 × 8,504.96
  4. Step 4: Simplify right side
    15,219.41x = 178,626,868.24
  5. Step 5: Solve for x
    x = 178,626,868.24/15,219.41
  6. Step 6: Final answer
    x = 11,736.78

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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.