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Finding the Fourth Proportional to 19,217.64, 28,813.08 and 9,839.46

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Solution

The fourth proportional to 19,217.64, 28,813.08 and 9,839.46 is: 14,752.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,217.64 : 28,813.08 = 9,839.46 : x
  2. Step 2: Convert to fraction form
    19,217.64/28,813.08 = 9,839.46/x
  3. Step 3: Cross multiply
    19,217.64x = 28,813.08 × 9,839.46
  4. Step 4: Simplify right side
    19,217.64x = 283,505,148.14
  5. Step 5: Solve for x
    x = 283,505,148.14/19,217.64
  6. Step 6: Final answer
    x = 14,752.34

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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.