Home / 14,018.37-20,936.69-12,699.48

Finding the Fourth Proportional to 14,018.37, 20,936.69 and 12,699.48

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Solution

The fourth proportional to 14,018.37, 20,936.69 and 12,699.48 is: 18,966.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,018.37 : 20,936.69 = 12,699.48 : x
  2. Step 2: Convert to fraction form
    14,018.37/20,936.69 = 12,699.48/x
  3. Step 3: Cross multiply
    14,018.37x = 20,936.69 × 12,699.48
  4. Step 4: Simplify right side
    14,018.37x = 265,885,138.56
  5. Step 5: Solve for x
    x = 265,885,138.56/14,018.37
  6. Step 6: Final answer
    x = 18,966.91

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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.