Home / 13,933.36-20,903.28-4,072.72

Finding the Fourth Proportional to 13,933.36, 20,903.28 and 4,072.72

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Solution

The fourth proportional to 13,933.36, 20,903.28 and 4,072.72 is: 6,110.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.36 : 20,903.28 = 4,072.72 : x
  2. Step 2: Convert to fraction form
    13,933.36/20,903.28 = 4,072.72/x
  3. Step 3: Cross multiply
    13,933.36x = 20,903.28 × 4,072.72
  4. Step 4: Simplify right side
    13,933.36x = 85,133,206.52
  5. Step 5: Solve for x
    x = 85,133,206.52/13,933.36
  6. Step 6: Final answer
    x = 6,110.03

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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.