Home / 9,187.90-13,776.35-3,643.85

Finding the Fourth Proportional to 9,187.90, 13,776.35 and 3,643.85

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Solution

The fourth proportional to 9,187.90, 13,776.35 and 3,643.85 is: 5,463.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,187.90 : 13,776.35 = 3,643.85 : x
  2. Step 2: Convert to fraction form
    9,187.90/13,776.35 = 3,643.85/x
  3. Step 3: Cross multiply
    9,187.90x = 13,776.35 × 3,643.85
  4. Step 4: Simplify right side
    9,187.90x = 50,198,969.17
  5. Step 5: Solve for x
    x = 50,198,969.17/9,187.90
  6. Step 6: Final answer
    x = 5,463.60

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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.