Home / 12,319.28-18,474.60-3,551.84

Finding the Fourth Proportional to 12,319.28, 18,474.60 and 3,551.84

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Solution

The fourth proportional to 12,319.28, 18,474.60 and 3,551.84 is: 5,326.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,319.28 : 18,474.60 = 3,551.84 : x
  2. Step 2: Convert to fraction form
    12,319.28/18,474.60 = 3,551.84/x
  3. Step 3: Cross multiply
    12,319.28x = 18,474.60 × 3,551.84
  4. Step 4: Simplify right side
    12,319.28x = 65,618,823.26
  5. Step 5: Solve for x
    x = 65,618,823.26/12,319.28
  6. Step 6: Final answer
    x = 5,326.51

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1.5x scale

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.