Home / 13,600.42-20,400.59-7,674.62

Finding the Fourth Proportional to 13,600.42, 20,400.59 and 7,674.62

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Solution

The fourth proportional to 13,600.42, 20,400.59 and 7,674.62 is: 11,511.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600.42 : 20,400.59 = 7,674.62 : x
  2. Step 2: Convert to fraction form
    13,600.42/20,400.59 = 7,674.62/x
  3. Step 3: Cross multiply
    13,600.42x = 20,400.59 × 7,674.62
  4. Step 4: Simplify right side
    13,600.42x = 156,566,776.03
  5. Step 5: Solve for x
    x = 156,566,776.03/13,600.42
  6. Step 6: Final answer
    x = 11,511.91

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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.