Home / 10,530.76-15,790.84-3,508.30

Finding the Fourth Proportional to 10,530.76, 15,790.84 and 3,508.30

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Solution

The fourth proportional to 10,530.76, 15,790.84 and 3,508.30 is: 5,260.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,530.76 : 15,790.84 = 3,508.30 : x
  2. Step 2: Convert to fraction form
    10,530.76/15,790.84 = 3,508.30/x
  3. Step 3: Cross multiply
    10,530.76x = 15,790.84 × 3,508.30
  4. Step 4: Simplify right side
    10,530.76x = 55,399,003.97
  5. Step 5: Solve for x
    x = 55,399,003.97/10,530.76
  6. Step 6: Final answer
    x = 5,260.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.