Home / 11,148.31-16,722.45-2,828.32

Finding the Fourth Proportional to 11,148.31, 16,722.45 and 2,828.32

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Solution

The fourth proportional to 11,148.31, 16,722.45 and 2,828.32 is: 4,242.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,148.31 : 16,722.45 = 2,828.32 : x
  2. Step 2: Convert to fraction form
    11,148.31/16,722.45 = 2,828.32/x
  3. Step 3: Cross multiply
    11,148.31x = 16,722.45 × 2,828.32
  4. Step 4: Simplify right side
    11,148.31x = 47,296,439.78
  5. Step 5: Solve for x
    x = 47,296,439.78/11,148.31
  6. Step 6: Final answer
    x = 4,242.48

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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.