Home / 15,070.20-20,796.28-8,355.94

Finding the Fourth Proportional to 15,070.20, 20,796.28 and 8,355.94

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Solution

The fourth proportional to 15,070.20, 20,796.28 and 8,355.94 is: 11,530.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,070.20 : 20,796.28 = 8,355.94 : x
  2. Step 2: Convert to fraction form
    15,070.20/20,796.28 = 8,355.94/x
  3. Step 3: Cross multiply
    15,070.20x = 20,796.28 × 8,355.94
  4. Step 4: Simplify right side
    15,070.20x = 173,772,467.90
  5. Step 5: Solve for x
    x = 173,772,467.90/15,070.20
  6. Step 6: Final answer
    x = 11,530.87

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.