Home / 6,215.76-9,309.60-4,821.48

Finding the Fourth Proportional to 6,215.76, 9,309.60 and 4,821.48

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Solution

The fourth proportional to 6,215.76, 9,309.60 and 4,821.48 is: 7,221.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,215.76 : 9,309.60 = 4,821.48 : x
  2. Step 2: Convert to fraction form
    6,215.76/9,309.60 = 4,821.48/x
  3. Step 3: Cross multiply
    6,215.76x = 9,309.60 × 4,821.48
  4. Step 4: Simplify right side
    6,215.76x = 44,886,050.21
  5. Step 5: Solve for x
    x = 44,886,050.21/6,215.76
  6. Step 6: Final answer
    x = 7,221.33

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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.