Home / 12,254.07-18,381.71-3,489.60

Finding the Fourth Proportional to 12,254.07, 18,381.71 and 3,489.60

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Solution

The fourth proportional to 12,254.07, 18,381.71 and 3,489.60 is: 5,234.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,254.07 : 18,381.71 = 3,489.60 : x
  2. Step 2: Convert to fraction form
    12,254.07/18,381.71 = 3,489.60/x
  3. Step 3: Cross multiply
    12,254.07x = 18,381.71 × 3,489.60
  4. Step 4: Simplify right side
    12,254.07x = 64,144,815.22
  5. Step 5: Solve for x
    x = 64,144,815.22/12,254.07
  6. Step 6: Final answer
    x = 5,234.57

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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.