Home / 8,468.20-11,687.45-5,111.49

Finding the Fourth Proportional to 8,468.20, 11,687.45 and 5,111.49

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Solution

The fourth proportional to 8,468.20, 11,687.45 and 5,111.49 is: 7,054.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,468.20 : 11,687.45 = 5,111.49 : x
  2. Step 2: Convert to fraction form
    8,468.20/11,687.45 = 5,111.49/x
  3. Step 3: Cross multiply
    8,468.20x = 11,687.45 × 5,111.49
  4. Step 4: Simplify right side
    8,468.20x = 59,740,258.24
  5. Step 5: Solve for x
    x = 59,740,258.24/8,468.20
  6. Step 6: Final answer
    x = 7,054.66

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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.