Home / 13,138.75-19,688.46-6,799.24

Finding the Fourth Proportional to 13,138.75, 19,688.46 and 6,799.24

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Solution

The fourth proportional to 13,138.75, 19,688.46 and 6,799.24 is: 10,188.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,138.75 : 19,688.46 = 6,799.24 : x
  2. Step 2: Convert to fraction form
    13,138.75/19,688.46 = 6,799.24/x
  3. Step 3: Cross multiply
    13,138.75x = 19,688.46 × 6,799.24
  4. Step 4: Simplify right side
    13,138.75x = 133,866,432.33
  5. Step 5: Solve for x
    x = 133,866,432.33/13,138.75
  6. Step 6: Final answer
    x = 10,188.67

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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.