Home / 13,548.77-20,323.18-7,311.71

Finding the Fourth Proportional to 13,548.77, 20,323.18 and 7,311.71

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Solution

The fourth proportional to 13,548.77, 20,323.18 and 7,311.71 is: 10,967.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548.77 : 20,323.18 = 7,311.71 : x
  2. Step 2: Convert to fraction form
    13,548.77/20,323.18 = 7,311.71/x
  3. Step 3: Cross multiply
    13,548.77x = 20,323.18 × 7,311.71
  4. Step 4: Simplify right side
    13,548.77x = 148,597,198.44
  5. Step 5: Solve for x
    x = 148,597,198.44/13,548.77
  6. Step 6: Final answer
    x = 10,967.58

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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.