Home / 11,215.02-16,816.95-4,192.02

Finding the Fourth Proportional to 11,215.02, 16,816.95 and 4,192.02

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Solution

The fourth proportional to 11,215.02, 16,816.95 and 4,192.02 is: 6,285.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.02 : 16,816.95 = 4,192.02 : x
  2. Step 2: Convert to fraction form
    11,215.02/16,816.95 = 4,192.02/x
  3. Step 3: Cross multiply
    11,215.02x = 16,816.95 × 4,192.02
  4. Step 4: Simplify right side
    11,215.02x = 70,496,990.74
  5. Step 5: Solve for x
    x = 70,496,990.74/11,215.02
  6. Step 6: Final answer
    x = 6,285.94

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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.