Home / 12,737.03-19,087.11-7,178.67

Finding the Fourth Proportional to 12,737.03, 19,087.11 and 7,178.67

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Solution

The fourth proportional to 12,737.03, 19,087.11 and 7,178.67 is: 10,757.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,737.03 : 19,087.11 = 7,178.67 : x
  2. Step 2: Convert to fraction form
    12,737.03/19,087.11 = 7,178.67/x
  3. Step 3: Cross multiply
    12,737.03x = 19,087.11 × 7,178.67
  4. Step 4: Simplify right side
    12,737.03x = 137,020,063.94
  5. Step 5: Solve for x
    x = 137,020,063.94/12,737.03
  6. Step 6: Final answer
    x = 10,757.62

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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.