Home / 10,072.23-15,108.30-3,830.78

Finding the Fourth Proportional to 10,072.23, 15,108.30 and 3,830.78

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Solution

The fourth proportional to 10,072.23, 15,108.30 and 3,830.78 is: 5,746.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,072.23 : 15,108.30 = 3,830.78 : x
  2. Step 2: Convert to fraction form
    10,072.23/15,108.30 = 3,830.78/x
  3. Step 3: Cross multiply
    10,072.23x = 15,108.30 × 3,830.78
  4. Step 4: Simplify right side
    10,072.23x = 57,876,497.93
  5. Step 5: Solve for x
    x = 57,876,497.93/10,072.23
  6. Step 6: Final answer
    x = 5,746.15

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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.