Home / 10,519.80-15,776.96-3,122.58

Finding the Fourth Proportional to 10,519.80, 15,776.96 and 3,122.58

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Solution

The fourth proportional to 10,519.80, 15,776.96 and 3,122.58 is: 4,683.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,519.80 : 15,776.96 = 3,122.58 : x
  2. Step 2: Convert to fraction form
    10,519.80/15,776.96 = 3,122.58/x
  3. Step 3: Cross multiply
    10,519.80x = 15,776.96 × 3,122.58
  4. Step 4: Simplify right side
    10,519.80x = 49,264,819.76
  5. Step 5: Solve for x
    x = 49,264,819.76/10,519.80
  6. Step 6: Final answer
    x = 4,683.06

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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.