Home / 11,011.16-16,518.21-3,219.86

Finding the Fourth Proportional to 11,011.16, 16,518.21 and 3,219.86

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Solution

The fourth proportional to 11,011.16, 16,518.21 and 3,219.86 is: 4,830.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,011.16 : 16,518.21 = 3,219.86 : x
  2. Step 2: Convert to fraction form
    11,011.16/16,518.21 = 3,219.86/x
  3. Step 3: Cross multiply
    11,011.16x = 16,518.21 × 3,219.86
  4. Step 4: Simplify right side
    11,011.16x = 53,186,323.65
  5. Step 5: Solve for x
    x = 53,186,323.65/11,011.16
  6. Step 6: Final answer
    x = 4,830.22

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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.