Home / 19,279.50-26,627.58-12,980.94

Finding the Fourth Proportional to 19,279.50, 26,627.58 and 12,980.94

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Solution

The fourth proportional to 19,279.50, 26,627.58 and 12,980.94 is: 17,928.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,279.50 : 26,627.58 = 12,980.94 : x
  2. Step 2: Convert to fraction form
    19,279.50/26,627.58 = 12,980.94/x
  3. Step 3: Cross multiply
    19,279.50x = 26,627.58 × 12,980.94
  4. Step 4: Simplify right side
    19,279.50x = 345,651,018.33
  5. Step 5: Solve for x
    x = 345,651,018.33/19,279.50
  6. Step 6: Final answer
    x = 17,928.42

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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.