Home / 10,622.80-15,928.35-5,077.54

Finding the Fourth Proportional to 10,622.80, 15,928.35 and 5,077.54

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Solution

The fourth proportional to 10,622.80, 15,928.35 and 5,077.54 is: 7,613.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,622.80 : 15,928.35 = 5,077.54 : x
  2. Step 2: Convert to fraction form
    10,622.80/15,928.35 = 5,077.54/x
  3. Step 3: Cross multiply
    10,622.80x = 15,928.35 × 5,077.54
  4. Step 4: Simplify right side
    10,622.80x = 80,876,834.26
  5. Step 5: Solve for x
    x = 80,876,834.26/10,622.80
  6. Step 6: Final answer
    x = 7,613.51

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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.