Home / 12,723.89-19,087.15-4,403.90

Finding the Fourth Proportional to 12,723.89, 19,087.15 and 4,403.90

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Solution

The fourth proportional to 12,723.89, 19,087.15 and 4,403.90 is: 6,606.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,723.89 : 19,087.15 = 4,403.90 : x
  2. Step 2: Convert to fraction form
    12,723.89/19,087.15 = 4,403.90/x
  3. Step 3: Cross multiply
    12,723.89x = 19,087.15 × 4,403.90
  4. Step 4: Simplify right side
    12,723.89x = 84,057,837.49
  5. Step 5: Solve for x
    x = 84,057,837.49/12,723.89
  6. Step 6: Final answer
    x = 6,606.30

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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.