Home / 11,911.02-17,866.20-3,146.01

Finding the Fourth Proportional to 11,911.02, 17,866.20 and 3,146.01

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Solution

The fourth proportional to 11,911.02, 17,866.20 and 3,146.01 is: 4,718.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911.02 : 17,866.20 = 3,146.01 : x
  2. Step 2: Convert to fraction form
    11,911.02/17,866.20 = 3,146.01/x
  3. Step 3: Cross multiply
    11,911.02x = 17,866.20 × 3,146.01
  4. Step 4: Simplify right side
    11,911.02x = 56,207,188.66
  5. Step 5: Solve for x
    x = 56,207,188.66/11,911.02
  6. Step 6: Final answer
    x = 4,718.92

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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.