Home / 15,986.72-23,982.10-5,458.74

Finding the Fourth Proportional to 15,986.72, 23,982.10 and 5,458.74

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Solution

The fourth proportional to 15,986.72, 23,982.10 and 5,458.74 is: 8,188.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,986.72 : 23,982.10 = 5,458.74 : x
  2. Step 2: Convert to fraction form
    15,986.72/23,982.10 = 5,458.74/x
  3. Step 3: Cross multiply
    15,986.72x = 23,982.10 × 5,458.74
  4. Step 4: Simplify right side
    15,986.72x = 130,912,048.55
  5. Step 5: Solve for x
    x = 130,912,048.55/15,986.72
  6. Step 6: Final answer
    x = 8,188.80

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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.