Home / 10,629.24-15,930.90-4,777.80

Finding the Fourth Proportional to 10,629.24, 15,930.90 and 4,777.80

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Solution

The fourth proportional to 10,629.24, 15,930.90 and 4,777.80 is: 7,160.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,629.24 : 15,930.90 = 4,777.80 : x
  2. Step 2: Convert to fraction form
    10,629.24/15,930.90 = 4,777.80/x
  3. Step 3: Cross multiply
    10,629.24x = 15,930.90 × 4,777.80
  4. Step 4: Simplify right side
    10,629.24x = 76,114,654.02
  5. Step 5: Solve for x
    x = 76,114,654.02/10,629.24
  6. Step 6: Final answer
    x = 7,160.87

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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.