Home / 34,176.91-51,265.68-11,990.80

Finding the Fourth Proportional to 34,176.91, 51,265.68 and 11,990.80

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Solution

The fourth proportional to 34,176.91, 51,265.68 and 11,990.80 is: 17,986.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,176.91 : 51,265.68 = 11,990.80 : x
  2. Step 2: Convert to fraction form
    34,176.91/51,265.68 = 11,990.80/x
  3. Step 3: Cross multiply
    34,176.91x = 51,265.68 × 11,990.80
  4. Step 4: Simplify right side
    34,176.91x = 614,716,515.74
  5. Step 5: Solve for x
    x = 614,716,515.74/34,176.91
  6. Step 6: Final answer
    x = 17,986.31

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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.