Home / 7,976.48-11,008.14-4,620.20

Finding the Fourth Proportional to 7,976.48, 11,008.14 and 4,620.20

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Solution

The fourth proportional to 7,976.48, 11,008.14 and 4,620.20 is: 6,376.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.48 : 11,008.14 = 4,620.20 : x
  2. Step 2: Convert to fraction form
    7,976.48/11,008.14 = 4,620.20/x
  3. Step 3: Cross multiply
    7,976.48x = 11,008.14 × 4,620.20
  4. Step 4: Simplify right side
    7,976.48x = 50,859,808.43
  5. Step 5: Solve for x
    x = 50,859,808.43/7,976.48
  6. Step 6: Final answer
    x = 6,376.22

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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.