Home / 12,898.08-17,796.24-8,180.64

Finding the Fourth Proportional to 12,898.08, 17,796.24 and 8,180.64

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Solution

The fourth proportional to 12,898.08, 17,796.24 and 8,180.64 is: 11,287.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,898.08 : 17,796.24 = 8,180.64 : x
  2. Step 2: Convert to fraction form
    12,898.08/17,796.24 = 8,180.64/x
  3. Step 3: Cross multiply
    12,898.08x = 17,796.24 × 8,180.64
  4. Step 4: Simplify right side
    12,898.08x = 145,584,632.79
  5. Step 5: Solve for x
    x = 145,584,632.79/12,898.08
  6. Step 6: Final answer
    x = 11,287.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.