Home / 12,450.99-17,178.71-7,412.69

Finding the Fourth Proportional to 12,450.99, 17,178.71 and 7,412.69

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Solution

The fourth proportional to 12,450.99, 17,178.71 and 7,412.69 is: 10,227.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.99 : 17,178.71 = 7,412.69 : x
  2. Step 2: Convert to fraction form
    12,450.99/17,178.71 = 7,412.69/x
  3. Step 3: Cross multiply
    12,450.99x = 17,178.71 × 7,412.69
  4. Step 4: Simplify right side
    12,450.99x = 127,340,328.87
  5. Step 5: Solve for x
    x = 127,340,328.87/12,450.99
  6. Step 6: Final answer
    x = 10,227.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.