Home / 19,170.76-28,760.46-7,487.32

Finding the Fourth Proportional to 19,170.76, 28,760.46 and 7,487.32

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Solution

The fourth proportional to 19,170.76, 28,760.46 and 7,487.32 is: 11,232.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,170.76 : 28,760.46 = 7,487.32 : x
  2. Step 2: Convert to fraction form
    19,170.76/28,760.46 = 7,487.32/x
  3. Step 3: Cross multiply
    19,170.76x = 28,760.46 × 7,487.32
  4. Step 4: Simplify right side
    19,170.76x = 215,338,767.37
  5. Step 5: Solve for x
    x = 215,338,767.37/19,170.76
  6. Step 6: Final answer
    x = 11,232.67

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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.