Home / 7,809.92-10,776.32-4,451.20

Finding the Fourth Proportional to 7,809.92, 10,776.32 and 4,451.20

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Solution

The fourth proportional to 7,809.92, 10,776.32 and 4,451.20 is: 6,141.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,809.92 : 10,776.32 = 4,451.20 : x
  2. Step 2: Convert to fraction form
    7,809.92/10,776.32 = 4,451.20/x
  3. Step 3: Cross multiply
    7,809.92x = 10,776.32 × 4,451.20
  4. Step 4: Simplify right side
    7,809.92x = 47,967,555.58
  5. Step 5: Solve for x
    x = 47,967,555.58/7,809.92
  6. Step 6: Final answer
    x = 6,141.88

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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.