Home / 12,465.11-18,698.53-3,579.76

Finding the Fourth Proportional to 12,465.11, 18,698.53 and 3,579.76

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Solution

The fourth proportional to 12,465.11, 18,698.53 and 3,579.76 is: 5,369.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,465.11 : 18,698.53 = 3,579.76 : x
  2. Step 2: Convert to fraction form
    12,465.11/18,698.53 = 3,579.76/x
  3. Step 3: Cross multiply
    12,465.11x = 18,698.53 × 3,579.76
  4. Step 4: Simplify right side
    12,465.11x = 66,936,194.06
  5. Step 5: Solve for x
    x = 66,936,194.06/12,465.11
  6. Step 6: Final answer
    x = 5,369.88

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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.