Home / 12,497.24-18,739.68-4,174.40

Finding the Fourth Proportional to 12,497.24, 18,739.68 and 4,174.40

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Solution

The fourth proportional to 12,497.24, 18,739.68 and 4,174.40 is: 6,259.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,497.24 : 18,739.68 = 4,174.40 : x
  2. Step 2: Convert to fraction form
    12,497.24/18,739.68 = 4,174.40/x
  3. Step 3: Cross multiply
    12,497.24x = 18,739.68 × 4,174.40
  4. Step 4: Simplify right side
    12,497.24x = 78,226,920.19
  5. Step 5: Solve for x
    x = 78,226,920.19/12,497.24
  6. Step 6: Final answer
    x = 6,259.54

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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.