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Finding the Fourth Proportional to 7,453.30, 11,167.80 and 7,015.90

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Solution

The fourth proportional to 7,453.30, 11,167.80 and 7,015.90 is: 10,512.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,453.30 : 11,167.80 = 7,015.90 : x
  2. Step 2: Convert to fraction form
    7,453.30/11,167.80 = 7,015.90/x
  3. Step 3: Cross multiply
    7,453.30x = 11,167.80 × 7,015.90
  4. Step 4: Simplify right side
    7,453.30x = 78,352,168.02
  5. Step 5: Solve for x
    x = 78,352,168.02/7,453.30
  6. Step 6: Final answer
    x = 10,512.41

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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.