Home / 10,217.80-15,323.10-3,644.20

Finding the Fourth Proportional to 10,217.80, 15,323.10 and 3,644.20

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Solution

The fourth proportional to 10,217.80, 15,323.10 and 3,644.20 is: 5,465.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,217.80 : 15,323.10 = 3,644.20 : x
  2. Step 2: Convert to fraction form
    10,217.80/15,323.10 = 3,644.20/x
  3. Step 3: Cross multiply
    10,217.80x = 15,323.10 × 3,644.20
  4. Step 4: Simplify right side
    10,217.80x = 55,840,441.02
  5. Step 5: Solve for x
    x = 55,840,441.02/10,217.80
  6. Step 6: Final answer
    x = 5,465.02

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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.