Home / 13,536.63-20,343.21-7,992.57

Finding the Fourth Proportional to 13,536.63, 20,343.21 and 7,992.57

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Solution

The fourth proportional to 13,536.63, 20,343.21 and 7,992.57 is: 12,011.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,536.63 : 20,343.21 = 7,992.57 : x
  2. Step 2: Convert to fraction form
    13,536.63/20,343.21 = 7,992.57/x
  3. Step 3: Cross multiply
    13,536.63x = 20,343.21 × 7,992.57
  4. Step 4: Simplify right side
    13,536.63x = 162,594,529.95
  5. Step 5: Solve for x
    x = 162,594,529.95/13,536.63
  6. Step 6: Final answer
    x = 12,011.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.