Home / 10,320.36-15,410.60-8,104.20

Finding the Fourth Proportional to 10,320.36, 15,410.60 and 8,104.20

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Solution

The fourth proportional to 10,320.36, 15,410.60 and 8,104.20 is: 12,101.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,320.36 : 15,410.60 = 8,104.20 : x
  2. Step 2: Convert to fraction form
    10,320.36/15,410.60 = 8,104.20/x
  3. Step 3: Cross multiply
    10,320.36x = 15,410.60 × 8,104.20
  4. Step 4: Simplify right side
    10,320.36x = 124,890,544.00
  5. Step 5: Solve for x
    x = 124,890,544.00/10,320.36
  6. Step 6: Final answer
    x = 12,101.37

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.