Home / 19,546.70-26,974.49-11,478.80

Finding the Fourth Proportional to 19,546.70, 26,974.49 and 11,478.80

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Solution

The fourth proportional to 19,546.70, 26,974.49 and 11,478.80 is: 15,840.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,546.70 : 26,974.49 = 11,478.80 : x
  2. Step 2: Convert to fraction form
    19,546.70/26,974.49 = 11,478.80/x
  3. Step 3: Cross multiply
    19,546.70x = 26,974.49 × 11,478.80
  4. Step 4: Simplify right side
    19,546.70x = 309,634,775.81
  5. Step 5: Solve for x
    x = 309,634,775.81/19,546.70
  6. Step 6: Final answer
    x = 15,840.77

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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.