Home / 12,756.67-19,134.48-4,438.57

Finding the Fourth Proportional to 12,756.67, 19,134.48 and 4,438.57

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Solution

The fourth proportional to 12,756.67, 19,134.48 and 4,438.57 is: 6,657.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756.67 : 19,134.48 = 4,438.57 : x
  2. Step 2: Convert to fraction form
    12,756.67/19,134.48 = 4,438.57/x
  3. Step 3: Cross multiply
    12,756.67x = 19,134.48 × 4,438.57
  4. Step 4: Simplify right side
    12,756.67x = 84,929,728.89
  5. Step 5: Solve for x
    x = 84,929,728.89/12,756.67
  6. Step 6: Final answer
    x = 6,657.67

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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.