Home / 9,879.30-13,632.95-5,630.54

Finding the Fourth Proportional to 9,879.30, 13,632.95 and 5,630.54

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Solution

The fourth proportional to 9,879.30, 13,632.95 and 5,630.54 is: 7,769.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.30 : 13,632.95 = 5,630.54 : x
  2. Step 2: Convert to fraction form
    9,879.30/13,632.95 = 5,630.54/x
  3. Step 3: Cross multiply
    9,879.30x = 13,632.95 × 5,630.54
  4. Step 4: Simplify right side
    9,879.30x = 76,760,918.45
  5. Step 5: Solve for x
    x = 76,760,918.45/9,879.30
  6. Step 6: Final answer
    x = 7,769.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.