Home / 11,445.66-17,168.31-8,345.34

Finding the Fourth Proportional to 11,445.66, 17,168.31 and 8,345.34

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Solution

The fourth proportional to 11,445.66, 17,168.31 and 8,345.34 is: 12,517.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,445.66 : 17,168.31 = 8,345.34 : x
  2. Step 2: Convert to fraction form
    11,445.66/17,168.31 = 8,345.34/x
  3. Step 3: Cross multiply
    11,445.66x = 17,168.31 × 8,345.34
  4. Step 4: Simplify right side
    11,445.66x = 143,275,384.18
  5. Step 5: Solve for x
    x = 143,275,384.18/11,445.66
  6. Step 6: Final answer
    x = 12,517.88

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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.