Home / 9,782.21-13,499.46-5,305.95

Finding the Fourth Proportional to 9,782.21, 13,499.46 and 5,305.95

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Solution

The fourth proportional to 9,782.21, 13,499.46 and 5,305.95 is: 7,322.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,782.21 : 13,499.46 = 5,305.95 : x
  2. Step 2: Convert to fraction form
    9,782.21/13,499.46 = 5,305.95/x
  3. Step 3: Cross multiply
    9,782.21x = 13,499.46 × 5,305.95
  4. Step 4: Simplify right side
    9,782.21x = 71,627,459.79
  5. Step 5: Solve for x
    x = 71,627,459.79/9,782.21
  6. Step 6: Final answer
    x = 7,322.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.