Home / 15,523.92-21,423.06-8,450.37

Finding the Fourth Proportional to 15,523.92, 21,423.06 and 8,450.37

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Solution

The fourth proportional to 15,523.92, 21,423.06 and 8,450.37 is: 11,661.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,523.92 : 21,423.06 = 8,450.37 : x
  2. Step 2: Convert to fraction form
    15,523.92/21,423.06 = 8,450.37/x
  3. Step 3: Cross multiply
    15,523.92x = 21,423.06 × 8,450.37
  4. Step 4: Simplify right side
    15,523.92x = 181,032,783.53
  5. Step 5: Solve for x
    x = 181,032,783.53/15,523.92
  6. Step 6: Final answer
    x = 11,661.54

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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.