Home / 13,915.22-20,872.88-4,054.75

Finding the Fourth Proportional to 13,915.22, 20,872.88 and 4,054.75

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Solution

The fourth proportional to 13,915.22, 20,872.88 and 4,054.75 is: 6,082.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.22 : 20,872.88 = 4,054.75 : x
  2. Step 2: Convert to fraction form
    13,915.22/20,872.88 = 4,054.75/x
  3. Step 3: Cross multiply
    13,915.22x = 20,872.88 × 4,054.75
  4. Step 4: Simplify right side
    13,915.22x = 84,634,310.18
  5. Step 5: Solve for x
    x = 84,634,310.18/13,915.22
  6. Step 6: Final answer
    x = 6,082.14

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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.