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Finding the Fourth Proportional to 10,615.01, 15,928.46 and 4,379.63

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Solution

The fourth proportional to 10,615.01, 15,928.46 and 4,379.63 is: 6,571.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,615.01 : 15,928.46 = 4,379.63 : x
  2. Step 2: Convert to fraction form
    10,615.01/15,928.46 = 4,379.63/x
  3. Step 3: Cross multiply
    10,615.01x = 15,928.46 × 4,379.63
  4. Step 4: Simplify right side
    10,615.01x = 69,760,739.37
  5. Step 5: Solve for x
    x = 69,760,739.37/10,615.01
  6. Step 6: Final answer
    x = 6,571.90

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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.