Home / 12,999.62-19,497.36-3,638.63

Finding the Fourth Proportional to 12,999.62, 19,497.36 and 3,638.63

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Solution

The fourth proportional to 12,999.62, 19,497.36 and 3,638.63 is: 5,457.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999.62 : 19,497.36 = 3,638.63 : x
  2. Step 2: Convert to fraction form
    12,999.62/19,497.36 = 3,638.63/x
  3. Step 3: Cross multiply
    12,999.62x = 19,497.36 × 3,638.63
  4. Step 4: Simplify right side
    12,999.62x = 70,943,679.02
  5. Step 5: Solve for x
    x = 70,943,679.02/12,999.62
  6. Step 6: Final answer
    x = 5,457.37

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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.