Home / 7,819.28-10,786.96-4,674.32

Finding the Fourth Proportional to 7,819.28, 10,786.96 and 4,674.32

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Solution

The fourth proportional to 7,819.28, 10,786.96 and 4,674.32 is: 6,448.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.28 : 10,786.96 = 4,674.32 : x
  2. Step 2: Convert to fraction form
    7,819.28/10,786.96 = 4,674.32/x
  3. Step 3: Cross multiply
    7,819.28x = 10,786.96 × 4,674.32
  4. Step 4: Simplify right side
    7,819.28x = 50,421,702.87
  5. Step 5: Solve for x
    x = 50,421,702.87/7,819.28
  6. Step 6: Final answer
    x = 6,448.38

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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.