Home / 11,731.84-17,584.80-7,830.88

Finding the Fourth Proportional to 11,731.84, 17,584.80 and 7,830.88

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Solution

The fourth proportional to 11,731.84, 17,584.80 and 7,830.88 is: 11,737.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,731.84 : 17,584.80 = 7,830.88 : x
  2. Step 2: Convert to fraction form
    11,731.84/17,584.80 = 7,830.88/x
  3. Step 3: Cross multiply
    11,731.84x = 17,584.80 × 7,830.88
  4. Step 4: Simplify right side
    11,731.84x = 137,704,458.62
  5. Step 5: Solve for x
    x = 137,704,458.62/11,731.84
  6. Step 6: Final answer
    x = 11,737.67

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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.