Home / 12,998.62-19,495.86-3,637.63

Finding the Fourth Proportional to 12,998.62, 19,495.86 and 3,637.63

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Solution

The fourth proportional to 12,998.62, 19,495.86 and 3,637.63 is: 5,455.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,998.62 : 19,495.86 = 3,637.63 : x
  2. Step 2: Convert to fraction form
    12,998.62/19,495.86 = 3,637.63/x
  3. Step 3: Cross multiply
    12,998.62x = 19,495.86 × 3,637.63
  4. Step 4: Simplify right side
    12,998.62x = 70,918,725.21
  5. Step 5: Solve for x
    x = 70,918,725.21/12,998.62
  6. Step 6: Final answer
    x = 5,455.87

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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.