Home / 12,303.53-18,458.23-3,983.55

Finding the Fourth Proportional to 12,303.53, 18,458.23 and 3,983.55

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Solution

The fourth proportional to 12,303.53, 18,458.23 and 3,983.55 is: 5,976.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303.53 : 18,458.23 = 3,983.55 : x
  2. Step 2: Convert to fraction form
    12,303.53/18,458.23 = 3,983.55/x
  3. Step 3: Cross multiply
    12,303.53x = 18,458.23 × 3,983.55
  4. Step 4: Simplify right side
    12,303.53x = 73,529,282.12
  5. Step 5: Solve for x
    x = 73,529,282.12/12,303.53
  6. Step 6: Final answer
    x = 5,976.28

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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.