Home / 12,380.33-18,574.60-4,980.98

Finding the Fourth Proportional to 12,380.33, 18,574.60 and 4,980.98

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Solution

The fourth proportional to 12,380.33, 18,574.60 and 4,980.98 is: 7,473.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,380.33 : 18,574.60 = 4,980.98 : x
  2. Step 2: Convert to fraction form
    12,380.33/18,574.60 = 4,980.98/x
  3. Step 3: Cross multiply
    12,380.33x = 18,574.60 × 4,980.98
  4. Step 4: Simplify right side
    12,380.33x = 92,519,711.11
  5. Step 5: Solve for x
    x = 92,519,711.11/12,380.33
  6. Step 6: Final answer
    x = 7,473.12

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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.