Home / 14,425.39-19,907.64-8,137.75

Finding the Fourth Proportional to 14,425.39, 19,907.64 and 8,137.75

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Solution

The fourth proportional to 14,425.39, 19,907.64 and 8,137.75 is: 11,230.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,425.39 : 19,907.64 = 8,137.75 : x
  2. Step 2: Convert to fraction form
    14,425.39/19,907.64 = 8,137.75/x
  3. Step 3: Cross multiply
    14,425.39x = 19,907.64 × 8,137.75
  4. Step 4: Simplify right side
    14,425.39x = 162,003,397.41
  5. Step 5: Solve for x
    x = 162,003,397.41/14,425.39
  6. Step 6: Final answer
    x = 11,230.43

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Double scale
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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.