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Finding the Fourth Proportional to 18,856.25, 28,241.30 and 9,002.48

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Solution

The fourth proportional to 18,856.25, 28,241.30 and 9,002.48 is: 13,483.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,856.25 : 28,241.30 = 9,002.48 : x
  2. Step 2: Convert to fraction form
    18,856.25/28,241.30 = 9,002.48/x
  3. Step 3: Cross multiply
    18,856.25x = 28,241.30 × 9,002.48
  4. Step 4: Simplify right side
    18,856.25x = 254,241,619.72
  5. Step 5: Solve for x
    x = 254,241,619.72/18,856.25
  6. Step 6: Final answer
    x = 13,483.15

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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.