Home / 10,616.72-15,928.40-4,379.67

Finding the Fourth Proportional to 10,616.72, 15,928.40 and 4,379.67

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Solution

The fourth proportional to 10,616.72, 15,928.40 and 4,379.67 is: 6,570.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,616.72 : 15,928.40 = 4,379.67 : x
  2. Step 2: Convert to fraction form
    10,616.72/15,928.40 = 4,379.67/x
  3. Step 3: Cross multiply
    10,616.72x = 15,928.40 × 4,379.67
  4. Step 4: Simplify right side
    10,616.72x = 69,761,146.58
  5. Step 5: Solve for x
    x = 69,761,146.58/10,616.72
  6. Step 6: Final answer
    x = 6,570.88

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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.