Home / 19,074.74-28,623.27-7,980.50

Finding the Fourth Proportional to 19,074.74, 28,623.27 and 7,980.50

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Solution

The fourth proportional to 19,074.74, 28,623.27 and 7,980.50 is: 11,975.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,074.74 : 28,623.27 = 7,980.50 : x
  2. Step 2: Convert to fraction form
    19,074.74/28,623.27 = 7,980.50/x
  3. Step 3: Cross multiply
    19,074.74x = 28,623.27 × 7,980.50
  4. Step 4: Simplify right side
    19,074.74x = 228,428,027.22
  5. Step 5: Solve for x
    x = 228,428,027.22/19,074.74
  6. Step 6: Final answer
    x = 11,975.42

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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.