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Finding the Fourth Proportional to 14,488, 19,994.44 and 8,200.40

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Solution

The fourth proportional to 14,488, 19,994.44 and 8,200.40 is: 11,317.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,488 : 19,994.44 = 8,200.40 : x
  2. Step 2: Convert to fraction form
    14,488/19,994.44 = 8,200.40/x
  3. Step 3: Cross multiply
    14,488x = 19,994.44 × 8,200.40
  4. Step 4: Simplify right side
    14,488x = 163,962,405.78
  5. Step 5: Solve for x
    x = 163,962,405.78/14,488
  6. Step 6: Final answer
    x = 11,317.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.