Home / 15,776.24-23,679.04-7,990.56

Finding the Fourth Proportional to 15,776.24, 23,679.04 and 7,990.56

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Solution

The fourth proportional to 15,776.24, 23,679.04 and 7,990.56 is: 11,993.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,776.24 : 23,679.04 = 7,990.56 : x
  2. Step 2: Convert to fraction form
    15,776.24/23,679.04 = 7,990.56/x
  3. Step 3: Cross multiply
    15,776.24x = 23,679.04 × 7,990.56
  4. Step 4: Simplify right side
    15,776.24x = 189,208,789.86
  5. Step 5: Solve for x
    x = 189,208,789.86/15,776.24
  6. Step 6: Final answer
    x = 11,993.28

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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.