Home / 15,660.56-23,490.88-5,279.60

Finding the Fourth Proportional to 15,660.56, 23,490.88 and 5,279.60

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Solution

The fourth proportional to 15,660.56, 23,490.88 and 5,279.60 is: 7,919.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,660.56 : 23,490.88 = 5,279.60 : x
  2. Step 2: Convert to fraction form
    15,660.56/23,490.88 = 5,279.60/x
  3. Step 3: Cross multiply
    15,660.56x = 23,490.88 × 5,279.60
  4. Step 4: Simplify right side
    15,660.56x = 124,022,450.05
  5. Step 5: Solve for x
    x = 124,022,450.05/15,660.56
  6. Step 6: Final answer
    x = 7,919.41

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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.