Home / 9,645.84-13,311.06-5,396.64

Finding the Fourth Proportional to 9,645.84, 13,311.06 and 5,396.64

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Solution

The fourth proportional to 9,645.84, 13,311.06 and 5,396.64 is: 7,447.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,645.84 : 13,311.06 = 5,396.64 : x
  2. Step 2: Convert to fraction form
    9,645.84/13,311.06 = 5,396.64/x
  3. Step 3: Cross multiply
    9,645.84x = 13,311.06 × 5,396.64
  4. Step 4: Simplify right side
    9,645.84x = 71,834,998.84
  5. Step 5: Solve for x
    x = 71,834,998.84/9,645.84
  6. Step 6: Final answer
    x = 7,447.25

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1.5x scale

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.