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Finding the Fourth Proportional to 7,503.36, 11,242.08 and 7,231.20

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Solution

The fourth proportional to 7,503.36, 11,242.08 and 7,231.20 is: 10,834.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,503.36 : 11,242.08 = 7,231.20 : x
  2. Step 2: Convert to fraction form
    7,503.36/11,242.08 = 7,231.20/x
  3. Step 3: Cross multiply
    7,503.36x = 11,242.08 × 7,231.20
  4. Step 4: Simplify right side
    7,503.36x = 81,293,728.90
  5. Step 5: Solve for x
    x = 81,293,728.90/7,503.36
  6. Step 6: Final answer
    x = 10,834.31

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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.