Home / 12,583.13-18,878.81-3,818.05

Finding the Fourth Proportional to 12,583.13, 18,878.81 and 3,818.05

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Solution

The fourth proportional to 12,583.13, 18,878.81 and 3,818.05 is: 5,728.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,583.13 : 18,878.81 = 3,818.05 : x
  2. Step 2: Convert to fraction form
    12,583.13/18,878.81 = 3,818.05/x
  3. Step 3: Cross multiply
    12,583.13x = 18,878.81 × 3,818.05
  4. Step 4: Simplify right side
    12,583.13x = 72,080,174.23
  5. Step 5: Solve for x
    x = 72,080,174.23/12,583.13
  6. Step 6: Final answer
    x = 5,728.32

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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.