Home / 18,291.53-25,226.52-11,915.72

Finding the Fourth Proportional to 18,291.53, 25,226.52 and 11,915.72

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Solution

The fourth proportional to 18,291.53, 25,226.52 and 11,915.72 is: 16,433.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,291.53 : 25,226.52 = 11,915.72 : x
  2. Step 2: Convert to fraction form
    18,291.53/25,226.52 = 11,915.72/x
  3. Step 3: Cross multiply
    18,291.53x = 25,226.52 × 11,915.72
  4. Step 4: Simplify right side
    18,291.53x = 300,592,072.68
  5. Step 5: Solve for x
    x = 300,592,072.68/18,291.53
  6. Step 6: Final answer
    x = 16,433.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.