Home / 10,809.79-16,213.35-2,912.93

Finding the Fourth Proportional to 10,809.79, 16,213.35 and 2,912.93

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Solution

The fourth proportional to 10,809.79, 16,213.35 and 2,912.93 is: 4,369.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,809.79 : 16,213.35 = 2,912.93 : x
  2. Step 2: Convert to fraction form
    10,809.79/16,213.35 = 2,912.93/x
  3. Step 3: Cross multiply
    10,809.79x = 16,213.35 × 2,912.93
  4. Step 4: Simplify right side
    10,809.79x = 47,228,353.62
  5. Step 5: Solve for x
    x = 47,228,353.62/10,809.79
  6. Step 6: Final answer
    x = 4,369.04

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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.