Home / 7,611.31-10,500.39-4,776.76

Finding the Fourth Proportional to 7,611.31, 10,500.39 and 4,776.76

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Solution

The fourth proportional to 7,611.31, 10,500.39 and 4,776.76 is: 6,589.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,611.31 : 10,500.39 = 4,776.76 : x
  2. Step 2: Convert to fraction form
    7,611.31/10,500.39 = 4,776.76/x
  3. Step 3: Cross multiply
    7,611.31x = 10,500.39 × 4,776.76
  4. Step 4: Simplify right side
    7,611.31x = 50,157,842.94
  5. Step 5: Solve for x
    x = 50,157,842.94/7,611.31
  6. Step 6: Final answer
    x = 6,589.91

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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.