Home / 13,699.14-20,449.58-12,038.37

Finding the Fourth Proportional to 13,699.14, 20,449.58 and 12,038.37

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Solution

The fourth proportional to 13,699.14, 20,449.58 and 12,038.37 is: 17,970.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,699.14 : 20,449.58 = 12,038.37 : x
  2. Step 2: Convert to fraction form
    13,699.14/20,449.58 = 12,038.37/x
  3. Step 3: Cross multiply
    13,699.14x = 20,449.58 × 12,038.37
  4. Step 4: Simplify right side
    13,699.14x = 246,179,610.38
  5. Step 5: Solve for x
    x = 246,179,610.38/13,699.14
  6. Step 6: Final answer
    x = 17,970.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.