Home / 12,257.53-18,386.29-3,938.22

Finding the Fourth Proportional to 12,257.53, 18,386.29 and 3,938.22

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Solution

The fourth proportional to 12,257.53, 18,386.29 and 3,938.22 is: 5,907.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257.53 : 18,386.29 = 3,938.22 : x
  2. Step 2: Convert to fraction form
    12,257.53/18,386.29 = 3,938.22/x
  3. Step 3: Cross multiply
    12,257.53x = 18,386.29 × 3,938.22
  4. Step 4: Simplify right side
    12,257.53x = 72,409,259.93
  5. Step 5: Solve for x
    x = 72,409,259.93/12,257.53
  6. Step 6: Final answer
    x = 5,907.33

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Similar ratio
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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.