Home / 11,891.75-16,409.28-6,585.23

Finding the Fourth Proportional to 11,891.75, 16,409.28 and 6,585.23

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Solution

The fourth proportional to 11,891.75, 16,409.28 and 6,585.23 is: 9,086.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,891.75 : 16,409.28 = 6,585.23 : x
  2. Step 2: Convert to fraction form
    11,891.75/16,409.28 = 6,585.23/x
  3. Step 3: Cross multiply
    11,891.75x = 16,409.28 × 6,585.23
  4. Step 4: Simplify right side
    11,891.75x = 108,058,948.65
  5. Step 5: Solve for x
    x = 108,058,948.65/11,891.75
  6. Step 6: Final answer
    x = 9,086.89

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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.