Home / 12,397.36-18,583.08-5,818

Finding the Fourth Proportional to 12,397.36, 18,583.08 and 5,818

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Solution

The fourth proportional to 12,397.36, 18,583.08 and 5,818 is: 8,720.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,397.36 : 18,583.08 = 5,818 : x
  2. Step 2: Convert to fraction form
    12,397.36/18,583.08 = 5,818/x
  3. Step 3: Cross multiply
    12,397.36x = 18,583.08 × 5,818
  4. Step 4: Simplify right side
    12,397.36x = 108,116,359.44
  5. Step 5: Solve for x
    x = 108,116,359.44/12,397.36
  6. Step 6: Final answer
    x = 8,720.92

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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.