Home / 18,766.16-25,896.54-11,216.65

Finding the Fourth Proportional to 18,766.16, 25,896.54 and 11,216.65

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Solution

The fourth proportional to 18,766.16, 25,896.54 and 11,216.65 is: 15,478.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,766.16 : 25,896.54 = 11,216.65 : x
  2. Step 2: Convert to fraction form
    18,766.16/25,896.54 = 11,216.65/x
  3. Step 3: Cross multiply
    18,766.16x = 25,896.54 × 11,216.65
  4. Step 4: Simplify right side
    18,766.16x = 290,472,429.46
  5. Step 5: Solve for x
    x = 290,472,429.46/18,766.16
  6. Step 6: Final answer
    x = 15,478.53

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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.