Home / 11,923.40-16,454.06-6,618.48

Finding the Fourth Proportional to 11,923.40, 16,454.06 and 6,618.48

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Solution

The fourth proportional to 11,923.40, 16,454.06 and 6,618.48 is: 9,133.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,923.40 : 16,454.06 = 6,618.48 : x
  2. Step 2: Convert to fraction form
    11,923.40/16,454.06 = 6,618.48/x
  3. Step 3: Cross multiply
    11,923.40x = 16,454.06 × 6,618.48
  4. Step 4: Simplify right side
    11,923.40x = 108,900,867.03
  5. Step 5: Solve for x
    x = 108,900,867.03/11,923.40
  6. Step 6: Final answer
    x = 9,133.37

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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.