Home / 12,379.18-18,568.57-4,983.45

Finding the Fourth Proportional to 12,379.18, 18,568.57 and 4,983.45

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Solution

The fourth proportional to 12,379.18, 18,568.57 and 4,983.45 is: 7,475.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379.18 : 18,568.57 = 4,983.45 : x
  2. Step 2: Convert to fraction form
    12,379.18/18,568.57 = 4,983.45/x
  3. Step 3: Cross multiply
    12,379.18x = 18,568.57 × 4,983.45
  4. Step 4: Simplify right side
    12,379.18x = 92,535,505.63
  5. Step 5: Solve for x
    x = 92,535,505.63/12,379.18
  6. Step 6: Final answer
    x = 7,475.09

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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.