Home / 15,840.72-23,766.36-5,311.79

Finding the Fourth Proportional to 15,840.72, 23,766.36 and 5,311.79

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Solution

The fourth proportional to 15,840.72, 23,766.36 and 5,311.79 is: 7,969.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,840.72 : 23,766.36 = 5,311.79 : x
  2. Step 2: Convert to fraction form
    15,840.72/23,766.36 = 5,311.79/x
  3. Step 3: Cross multiply
    15,840.72x = 23,766.36 × 5,311.79
  4. Step 4: Simplify right side
    15,840.72x = 126,241,794.55
  5. Step 5: Solve for x
    x = 126,241,794.55/15,840.72
  6. Step 6: Final answer
    x = 7,969.45

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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.