Home / 13,936.61-20,905.09-4,076.07

Finding the Fourth Proportional to 13,936.61, 20,905.09 and 4,076.07

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Solution

The fourth proportional to 13,936.61, 20,905.09 and 4,076.07 is: 6,114.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,936.61 : 20,905.09 = 4,076.07 : x
  2. Step 2: Convert to fraction form
    13,936.61/20,905.09 = 4,076.07/x
  3. Step 3: Cross multiply
    13,936.61x = 20,905.09 × 4,076.07
  4. Step 4: Simplify right side
    13,936.61x = 85,210,639.20
  5. Step 5: Solve for x
    x = 85,210,639.20/13,936.61
  6. Step 6: Final answer
    x = 6,114.16

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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.