Home / 10,621.46-15,930.30-4,777.04

Finding the Fourth Proportional to 10,621.46, 15,930.30 and 4,777.04

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Solution

The fourth proportional to 10,621.46, 15,930.30 and 4,777.04 is: 7,164.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.46 : 15,930.30 = 4,777.04 : x
  2. Step 2: Convert to fraction form
    10,621.46/15,930.30 = 4,777.04/x
  3. Step 3: Cross multiply
    10,621.46x = 15,930.30 × 4,777.04
  4. Step 4: Simplify right side
    10,621.46x = 76,099,680.31
  5. Step 5: Solve for x
    x = 76,099,680.31/10,621.46
  6. Step 6: Final answer
    x = 7,164.71

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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.