Home / 10,163.07-15,244.20-3,142.80

Finding the Fourth Proportional to 10,163.07, 15,244.20 and 3,142.80

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Solution

The fourth proportional to 10,163.07, 15,244.20 and 3,142.80 is: 4,714.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,163.07 : 15,244.20 = 3,142.80 : x
  2. Step 2: Convert to fraction form
    10,163.07/15,244.20 = 3,142.80/x
  3. Step 3: Cross multiply
    10,163.07x = 15,244.20 × 3,142.80
  4. Step 4: Simplify right side
    10,163.07x = 47,909,471.76
  5. Step 5: Solve for x
    x = 47,909,471.76/10,163.07
  6. Step 6: Final answer
    x = 4,714.07

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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.