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Finding the Fourth Proportional to 7,188.03, 9,919.53 and 4,355.46

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Solution

The fourth proportional to 7,188.03, 9,919.53 and 4,355.46 is: 6,010.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,188.03 : 9,919.53 = 4,355.46 : x
  2. Step 2: Convert to fraction form
    7,188.03/9,919.53 = 4,355.46/x
  3. Step 3: Cross multiply
    7,188.03x = 9,919.53 × 4,355.46
  4. Step 4: Simplify right side
    7,188.03x = 43,204,116.13
  5. Step 5: Solve for x
    x = 43,204,116.13/7,188.03
  6. Step 6: Final answer
    x = 6,010.56

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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.