Home / 10,378.10-15,579.30-5,939.30

Finding the Fourth Proportional to 10,378.10, 15,579.30 and 5,939.30

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Solution

The fourth proportional to 10,378.10, 15,579.30 and 5,939.30 is: 8,915.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.10 : 15,579.30 = 5,939.30 : x
  2. Step 2: Convert to fraction form
    10,378.10/15,579.30 = 5,939.30/x
  3. Step 3: Cross multiply
    10,378.10x = 15,579.30 × 5,939.30
  4. Step 4: Simplify right side
    10,378.10x = 92,530,136.49
  5. Step 5: Solve for x
    x = 92,530,136.49/10,378.10
  6. Step 6: Final answer
    x = 8,915.90

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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.