Home / 10,141.05-15,213.02-3,121.65

Finding the Fourth Proportional to 10,141.05, 15,213.02 and 3,121.65

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Solution

The fourth proportional to 10,141.05, 15,213.02 and 3,121.65 is: 4,682.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,141.05 : 15,213.02 = 3,121.65 : x
  2. Step 2: Convert to fraction form
    10,141.05/15,213.02 = 3,121.65/x
  3. Step 3: Cross multiply
    10,141.05x = 15,213.02 × 3,121.65
  4. Step 4: Simplify right side
    10,141.05x = 47,489,732.45
  5. Step 5: Solve for x
    x = 47,489,732.45/10,141.05
  6. Step 6: Final answer
    x = 4,682.92

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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.