Home / 7,954.20-11,915.10-4,060.80

Finding the Fourth Proportional to 7,954.20, 11,915.10 and 4,060.80

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Solution

The fourth proportional to 7,954.20, 11,915.10 and 4,060.80 is: 6,082.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,954.20 : 11,915.10 = 4,060.80 : x
  2. Step 2: Convert to fraction form
    7,954.20/11,915.10 = 4,060.80/x
  3. Step 3: Cross multiply
    7,954.20x = 11,915.10 × 4,060.80
  4. Step 4: Simplify right side
    7,954.20x = 48,384,838.08
  5. Step 5: Solve for x
    x = 48,384,838.08/7,954.20
  6. Step 6: Final answer
    x = 6,082.93

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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.