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Finding the Fourth Proportional to 7,200.50, 9,936.87 and 4,368.02

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Solution

The fourth proportional to 7,200.50, 9,936.87 and 4,368.02 is: 6,027.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200.50 : 9,936.87 = 4,368.02 : x
  2. Step 2: Convert to fraction form
    7,200.50/9,936.87 = 4,368.02/x
  3. Step 3: Cross multiply
    7,200.50x = 9,936.87 × 4,368.02
  4. Step 4: Simplify right side
    7,200.50x = 43,404,446.90
  5. Step 5: Solve for x
    x = 43,404,446.90/7,200.50
  6. Step 6: Final answer
    x = 6,027.98

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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.