Home / 12,323.05-18,490.41-6,396.79

Finding the Fourth Proportional to 12,323.05, 18,490.41 and 6,396.79

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Solution

The fourth proportional to 12,323.05, 18,490.41 and 6,396.79 is: 9,598.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,323.05 : 18,490.41 = 6,396.79 : x
  2. Step 2: Convert to fraction form
    12,323.05/18,490.41 = 6,396.79/x
  3. Step 3: Cross multiply
    12,323.05x = 18,490.41 × 6,396.79
  4. Step 4: Simplify right side
    12,323.05x = 118,279,199.57
  5. Step 5: Solve for x
    x = 118,279,199.57/12,323.05
  6. Step 6: Final answer
    x = 9,598.21

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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.