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Finding the Fourth Proportional to 19,120.62, 28,655.01 and 9,893.10

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Solution

The fourth proportional to 19,120.62, 28,655.01 and 9,893.10 is: 14,826.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120.62 : 28,655.01 = 9,893.10 : x
  2. Step 2: Convert to fraction form
    19,120.62/28,655.01 = 9,893.10/x
  3. Step 3: Cross multiply
    19,120.62x = 28,655.01 × 9,893.10
  4. Step 4: Simplify right side
    19,120.62x = 283,486,879.43
  5. Step 5: Solve for x
    x = 283,486,879.43/19,120.62
  6. Step 6: Final answer
    x = 14,826.24

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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.