Home / 13,915.32-20,872.23-4,554.15

Finding the Fourth Proportional to 13,915.32, 20,872.23 and 4,554.15

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Solution

The fourth proportional to 13,915.32, 20,872.23 and 4,554.15 is: 6,830.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.32 : 20,872.23 = 4,554.15 : x
  2. Step 2: Convert to fraction form
    13,915.32/20,872.23 = 4,554.15/x
  3. Step 3: Cross multiply
    13,915.32x = 20,872.23 × 4,554.15
  4. Step 4: Simplify right side
    13,915.32x = 95,055,266.25
  5. Step 5: Solve for x
    x = 95,055,266.25/13,915.32
  6. Step 6: Final answer
    x = 6,830.98

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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.