Home / 12,451.79-18,677.66-3,687.39

Finding the Fourth Proportional to 12,451.79, 18,677.66 and 3,687.39

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Solution

The fourth proportional to 12,451.79, 18,677.66 and 3,687.39 is: 5,531.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,451.79 : 18,677.66 = 3,687.39 : x
  2. Step 2: Convert to fraction form
    12,451.79/18,677.66 = 3,687.39/x
  3. Step 3: Cross multiply
    12,451.79x = 18,677.66 × 3,687.39
  4. Step 4: Simplify right side
    12,451.79x = 68,871,798.27
  5. Step 5: Solve for x
    x = 68,871,798.27/12,451.79
  6. Step 6: Final answer
    x = 5,531.08

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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.