Home / 10,603.62-15,905.88-3,583.80

Finding the Fourth Proportional to 10,603.62, 15,905.88 and 3,583.80

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Solution

The fourth proportional to 10,603.62, 15,905.88 and 3,583.80 is: 5,375.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,603.62 : 15,905.88 = 3,583.80 : x
  2. Step 2: Convert to fraction form
    10,603.62/15,905.88 = 3,583.80/x
  3. Step 3: Cross multiply
    10,603.62x = 15,905.88 × 3,583.80
  4. Step 4: Simplify right side
    10,603.62x = 57,003,492.74
  5. Step 5: Solve for x
    x = 57,003,492.74/10,603.62
  6. Step 6: Final answer
    x = 5,375.85

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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.