Home / 19,174.06-28,729.18-6,687.20

Finding the Fourth Proportional to 19,174.06, 28,729.18 and 6,687.20

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Solution

The fourth proportional to 19,174.06, 28,729.18 and 6,687.20 is: 10,019.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,174.06 : 28,729.18 = 6,687.20 : x
  2. Step 2: Convert to fraction form
    19,174.06/28,729.18 = 6,687.20/x
  3. Step 3: Cross multiply
    19,174.06x = 28,729.18 × 6,687.20
  4. Step 4: Simplify right side
    19,174.06x = 192,117,772.50
  5. Step 5: Solve for x
    x = 192,117,772.50/19,174.06
  6. Step 6: Final answer
    x = 10,019.67

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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.