Home / 12,403.96-18,606.90-3,519.14

Finding the Fourth Proportional to 12,403.96, 18,606.90 and 3,519.14

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Solution

The fourth proportional to 12,403.96, 18,606.90 and 3,519.14 is: 5,278.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.96 : 18,606.90 = 3,519.14 : x
  2. Step 2: Convert to fraction form
    12,403.96/18,606.90 = 3,519.14/x
  3. Step 3: Cross multiply
    12,403.96x = 18,606.90 × 3,519.14
  4. Step 4: Simplify right side
    12,403.96x = 65,480,206.23
  5. Step 5: Solve for x
    x = 65,480,206.23/12,403.96
  6. Step 6: Final answer
    x = 5,278.98

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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.