Home / 12,403.67-18,608.13-3,637.85

Finding the Fourth Proportional to 12,403.67, 18,608.13 and 3,637.85

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Solution

The fourth proportional to 12,403.67, 18,608.13 and 3,637.85 is: 5,457.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.67 : 18,608.13 = 3,637.85 : x
  2. Step 2: Convert to fraction form
    12,403.67/18,608.13 = 3,637.85/x
  3. Step 3: Cross multiply
    12,403.67x = 18,608.13 × 3,637.85
  4. Step 4: Simplify right side
    12,403.67x = 67,693,492.68
  5. Step 5: Solve for x
    x = 67,693,492.68/12,403.67
  6. Step 6: Final answer
    x = 5,457.54

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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.