Home / 15,660.24-21,586.60-11,868.24

Finding the Fourth Proportional to 15,660.24, 21,586.60 and 11,868.24

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Solution

The fourth proportional to 15,660.24, 21,586.60 and 11,868.24 is: 16,359.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,660.24 : 21,586.60 = 11,868.24 : x
  2. Step 2: Convert to fraction form
    15,660.24/21,586.60 = 11,868.24/x
  3. Step 3: Cross multiply
    15,660.24x = 21,586.60 × 11,868.24
  4. Step 4: Simplify right side
    15,660.24x = 256,194,949.58
  5. Step 5: Solve for x
    x = 256,194,949.58/15,660.24
  6. Step 6: Final answer
    x = 16,359.58

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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.