Home / 19,270.94-28,911.44-8,178.08

Finding the Fourth Proportional to 19,270.94, 28,911.44 and 8,178.08

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Solution

The fourth proportional to 19,270.94, 28,911.44 and 8,178.08 is: 12,269.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,270.94 : 28,911.44 = 8,178.08 : x
  2. Step 2: Convert to fraction form
    19,270.94/28,911.44 = 8,178.08/x
  3. Step 3: Cross multiply
    19,270.94x = 28,911.44 × 8,178.08
  4. Step 4: Simplify right side
    19,270.94x = 236,439,945.12
  5. Step 5: Solve for x
    x = 236,439,945.12/19,270.94
  6. Step 6: Final answer
    x = 12,269.25

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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.