Home / 12,261.82-18,400.06-5,690.28

Finding the Fourth Proportional to 12,261.82, 18,400.06 and 5,690.28

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Solution

The fourth proportional to 12,261.82, 18,400.06 and 5,690.28 is: 8,538.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,261.82 : 18,400.06 = 5,690.28 : x
  2. Step 2: Convert to fraction form
    12,261.82/18,400.06 = 5,690.28/x
  3. Step 3: Cross multiply
    12,261.82x = 18,400.06 × 5,690.28
  4. Step 4: Simplify right side
    12,261.82x = 104,701,493.42
  5. Step 5: Solve for x
    x = 104,701,493.42/12,261.82
  6. Step 6: Final answer
    x = 8,538.82

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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.