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Finding the Fourth Proportional to 14,308.88, 19,746.38 and 8,021.39

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Solution

The fourth proportional to 14,308.88, 19,746.38 and 8,021.39 is: 11,069.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,308.88 : 19,746.38 = 8,021.39 : x
  2. Step 2: Convert to fraction form
    14,308.88/19,746.38 = 8,021.39/x
  3. Step 3: Cross multiply
    14,308.88x = 19,746.38 × 8,021.39
  4. Step 4: Simplify right side
    14,308.88x = 158,393,336.39
  5. Step 5: Solve for x
    x = 158,393,336.39/14,308.88
  6. Step 6: Final answer
    x = 11,069.59

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1.5x scale

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.