Home / 12,374.64-18,558.30-3,607.20

Finding the Fourth Proportional to 12,374.64, 18,558.30 and 3,607.20

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Solution

The fourth proportional to 12,374.64, 18,558.30 and 3,607.20 is: 5,409.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,374.64 : 18,558.30 = 3,607.20 : x
  2. Step 2: Convert to fraction form
    12,374.64/18,558.30 = 3,607.20/x
  3. Step 3: Cross multiply
    12,374.64x = 18,558.30 × 3,607.20
  4. Step 4: Simplify right side
    12,374.64x = 66,943,499.76
  5. Step 5: Solve for x
    x = 66,943,499.76/12,374.64
  6. Step 6: Final answer
    x = 5,409.73

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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.