Home / 15,597.05-21,522.60-8,791.61

Finding the Fourth Proportional to 15,597.05, 21,522.60 and 8,791.61

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Solution

The fourth proportional to 15,597.05, 21,522.60 and 8,791.61 is: 12,131.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,597.05 : 21,522.60 = 8,791.61 : x
  2. Step 2: Convert to fraction form
    15,597.05/21,522.60 = 8,791.61/x
  3. Step 3: Cross multiply
    15,597.05x = 21,522.60 × 8,791.61
  4. Step 4: Simplify right side
    15,597.05x = 189,218,197.77
  5. Step 5: Solve for x
    x = 189,218,197.77/15,597.05
  6. Step 6: Final answer
    x = 12,131.67

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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.