Home / 19,164.20-28,729.20-7,474.70

Finding the Fourth Proportional to 19,164.20, 28,729.20 and 7,474.70

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Solution

The fourth proportional to 19,164.20, 28,729.20 and 7,474.70 is: 11,205.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,164.20 : 28,729.20 = 7,474.70 : x
  2. Step 2: Convert to fraction form
    19,164.20/28,729.20 = 7,474.70/x
  3. Step 3: Cross multiply
    19,164.20x = 28,729.20 × 7,474.70
  4. Step 4: Simplify right side
    19,164.20x = 214,742,151.24
  5. Step 5: Solve for x
    x = 214,742,151.24/19,164.20
  6. Step 6: Final answer
    x = 11,205.38

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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.