Home / 10,617.80-15,922.38-4,772.84

Finding the Fourth Proportional to 10,617.80, 15,922.38 and 4,772.84

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Solution

The fourth proportional to 10,617.80, 15,922.38 and 4,772.84 is: 7,157.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,617.80 : 15,922.38 = 4,772.84 : x
  2. Step 2: Convert to fraction form
    10,617.80/15,922.38 = 4,772.84/x
  3. Step 3: Cross multiply
    10,617.80x = 15,922.38 × 4,772.84
  4. Step 4: Simplify right side
    10,617.80x = 75,994,972.16
  5. Step 5: Solve for x
    x = 75,994,972.16/10,617.80
  6. Step 6: Final answer
    x = 7,157.32

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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.