Home / 19,213.20-28,815.48-8,814.96

Finding the Fourth Proportional to 19,213.20, 28,815.48 and 8,814.96

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Solution

The fourth proportional to 19,213.20, 28,815.48 and 8,814.96 is: 13,220.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,213.20 : 28,815.48 = 8,814.96 : x
  2. Step 2: Convert to fraction form
    19,213.20/28,815.48 = 8,814.96/x
  3. Step 3: Cross multiply
    19,213.20x = 28,815.48 × 8,814.96
  4. Step 4: Simplify right side
    19,213.20x = 254,007,303.58
  5. Step 5: Solve for x
    x = 254,007,303.58/19,213.20
  6. Step 6: Final answer
    x = 13,220.46

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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.