Home / 12,422.56-18,633.87-3,657.58

Finding the Fourth Proportional to 12,422.56, 18,633.87 and 3,657.58

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Solution

The fourth proportional to 12,422.56, 18,633.87 and 3,657.58 is: 5,486.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,422.56 : 18,633.87 = 3,657.58 : x
  2. Step 2: Convert to fraction form
    12,422.56/18,633.87 = 3,657.58/x
  3. Step 3: Cross multiply
    12,422.56x = 18,633.87 × 3,657.58
  4. Step 4: Simplify right side
    12,422.56x = 68,154,870.23
  5. Step 5: Solve for x
    x = 68,154,870.23/12,422.56
  6. Step 6: Final answer
    x = 5,486.38

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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.