Home / 12,690.24-19,017-8,737.44

Finding the Fourth Proportional to 12,690.24, 19,017 and 8,737.44

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Solution

The fourth proportional to 12,690.24, 19,017 and 8,737.44 is: 13,093.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,690.24 : 19,017 = 8,737.44 : x
  2. Step 2: Convert to fraction form
    12,690.24/19,017 = 8,737.44/x
  3. Step 3: Cross multiply
    12,690.24x = 19,017 × 8,737.44
  4. Step 4: Simplify right side
    12,690.24x = 166,159,896.48
  5. Step 5: Solve for x
    x = 166,159,896.48/12,690.24
  6. Step 6: Final answer
    x = 13,093.52

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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.