Home / 10,200.45-15,299.46-2,805.66

Finding the Fourth Proportional to 10,200.45, 15,299.46 and 2,805.66

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Solution

The fourth proportional to 10,200.45, 15,299.46 and 2,805.66 is: 4,208.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,200.45 : 15,299.46 = 2,805.66 : x
  2. Step 2: Convert to fraction form
    10,200.45/15,299.46 = 2,805.66/x
  3. Step 3: Cross multiply
    10,200.45x = 15,299.46 × 2,805.66
  4. Step 4: Simplify right side
    10,200.45x = 42,925,082.94
  5. Step 5: Solve for x
    x = 42,925,082.94/10,200.45
  6. Step 6: Final answer
    x = 4,208.16

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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.