Home / 10,520.37-15,780.17-2,622.87

Finding the Fourth Proportional to 10,520.37, 15,780.17 and 2,622.87

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Solution

The fourth proportional to 10,520.37, 15,780.17 and 2,622.87 is: 3,934.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,520.37 : 15,780.17 = 2,622.87 : x
  2. Step 2: Convert to fraction form
    10,520.37/15,780.17 = 2,622.87/x
  3. Step 3: Cross multiply
    10,520.37x = 15,780.17 × 2,622.87
  4. Step 4: Simplify right side
    10,520.37x = 41,389,321.37
  5. Step 5: Solve for x
    x = 41,389,321.37/10,520.37
  6. Step 6: Final answer
    x = 3,934.21

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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.