Home / 12,359.37-18,521.74-6,815.33

Finding the Fourth Proportional to 12,359.37, 18,521.74 and 6,815.33

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Solution

The fourth proportional to 12,359.37, 18,521.74 and 6,815.33 is: 10,213.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,359.37 : 18,521.74 = 6,815.33 : x
  2. Step 2: Convert to fraction form
    12,359.37/18,521.74 = 6,815.33/x
  3. Step 3: Cross multiply
    12,359.37x = 18,521.74 × 6,815.33
  4. Step 4: Simplify right side
    12,359.37x = 126,231,770.27
  5. Step 5: Solve for x
    x = 126,231,770.27/12,359.37
  6. Step 6: Final answer
    x = 10,213.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.