Home / 7,200.60-9,936.57-4,013.79

Finding the Fourth Proportional to 7,200.60, 9,936.57 and 4,013.79

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Solution

The fourth proportional to 7,200.60, 9,936.57 and 4,013.79 is: 5,538.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200.60 : 9,936.57 = 4,013.79 : x
  2. Step 2: Convert to fraction form
    7,200.60/9,936.57 = 4,013.79/x
  3. Step 3: Cross multiply
    7,200.60x = 9,936.57 × 4,013.79
  4. Step 4: Simplify right side
    7,200.60x = 39,883,305.30
  5. Step 5: Solve for x
    x = 39,883,305.30/7,200.60
  6. Step 6: Final answer
    x = 5,538.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.