Home / 12,384.58-18,577.03-3,619.68

Finding the Fourth Proportional to 12,384.58, 18,577.03 and 3,619.68

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Solution

The fourth proportional to 12,384.58, 18,577.03 and 3,619.68 is: 5,429.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,384.58 : 18,577.03 = 3,619.68 : x
  2. Step 2: Convert to fraction form
    12,384.58/18,577.03 = 3,619.68/x
  3. Step 3: Cross multiply
    12,384.58x = 18,577.03 × 3,619.68
  4. Step 4: Simplify right side
    12,384.58x = 67,242,903.95
  5. Step 5: Solve for x
    x = 67,242,903.95/12,384.58
  6. Step 6: Final answer
    x = 5,429.57

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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.