Home / 7,818.28-10,786.36-4,630.84

Finding the Fourth Proportional to 7,818.28, 10,786.36 and 4,630.84

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Solution

The fourth proportional to 7,818.28, 10,786.36 and 4,630.84 is: 6,388.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,818.28 : 10,786.36 = 4,630.84 : x
  2. Step 2: Convert to fraction form
    7,818.28/10,786.36 = 4,630.84/x
  3. Step 3: Cross multiply
    7,818.28x = 10,786.36 × 4,630.84
  4. Step 4: Simplify right side
    7,818.28x = 49,949,907.34
  5. Step 5: Solve for x
    x = 49,949,907.34/7,818.28
  6. Step 6: Final answer
    x = 6,388.86

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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.