Home / 15,245.07-21,035.66-8,958.66

Finding the Fourth Proportional to 15,245.07, 21,035.66 and 8,958.66

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Solution

The fourth proportional to 15,245.07, 21,035.66 and 8,958.66 is: 12,361.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,245.07 : 21,035.66 = 8,958.66 : x
  2. Step 2: Convert to fraction form
    15,245.07/21,035.66 = 8,958.66/x
  3. Step 3: Cross multiply
    15,245.07x = 21,035.66 × 8,958.66
  4. Step 4: Simplify right side
    15,245.07x = 188,451,325.82
  5. Step 5: Solve for x
    x = 188,451,325.82/15,245.07
  6. Step 6: Final answer
    x = 12,361.46

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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.