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Finding the Fourth Proportional to 19,070.08, 28,608.90 and 7,383.40

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Solution

The fourth proportional to 19,070.08, 28,608.90 and 7,383.40 is: 11,076.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,070.08 : 28,608.90 = 7,383.40 : x
  2. Step 2: Convert to fraction form
    19,070.08/28,608.90 = 7,383.40/x
  3. Step 3: Cross multiply
    19,070.08x = 28,608.90 × 7,383.40
  4. Step 4: Simplify right side
    19,070.08x = 211,230,952.26
  5. Step 5: Solve for x
    x = 211,230,952.26/19,070.08
  6. Step 6: Final answer
    x = 11,076.56

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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.