Home / 12,965.77-19,451.08-5,174.65

Finding the Fourth Proportional to 12,965.77, 19,451.08 and 5,174.65

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Solution

The fourth proportional to 12,965.77, 19,451.08 and 5,174.65 is: 7,762.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,965.77 : 19,451.08 = 5,174.65 : x
  2. Step 2: Convert to fraction form
    12,965.77/19,451.08 = 5,174.65/x
  3. Step 3: Cross multiply
    12,965.77x = 19,451.08 × 5,174.65
  4. Step 4: Simplify right side
    12,965.77x = 100,652,433.87
  5. Step 5: Solve for x
    x = 100,652,433.87/12,965.77
  6. Step 6: Final answer
    x = 7,762.94

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1.5x scale

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.