Home / 13,928.24-20,887.77-6,428.73

Finding the Fourth Proportional to 13,928.24, 20,887.77 and 6,428.73

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Solution

The fourth proportional to 13,928.24, 20,887.77 and 6,428.73 is: 9,640.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.24 : 20,887.77 = 6,428.73 : x
  2. Step 2: Convert to fraction form
    13,928.24/20,887.77 = 6,428.73/x
  3. Step 3: Cross multiply
    13,928.24x = 20,887.77 × 6,428.73
  4. Step 4: Simplify right side
    13,928.24x = 134,281,936.07
  5. Step 5: Solve for x
    x = 134,281,936.07/13,928.24
  6. Step 6: Final answer
    x = 9,640.98

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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.