Home / 19,076.08-28,619.20-7,979.04

Finding the Fourth Proportional to 19,076.08, 28,619.20 and 7,979.04

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Solution

The fourth proportional to 19,076.08, 28,619.20 and 7,979.04 is: 11,970.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,076.08 : 28,619.20 = 7,979.04 : x
  2. Step 2: Convert to fraction form
    19,076.08/28,619.20 = 7,979.04/x
  3. Step 3: Cross multiply
    19,076.08x = 28,619.20 × 7,979.04
  4. Step 4: Simplify right side
    19,076.08x = 228,353,741.57
  5. Step 5: Solve for x
    x = 228,353,741.57/19,076.08
  6. Step 6: Final answer
    x = 11,970.68

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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.