Home / 10,639.38-15,961.50-5,094.12

Finding the Fourth Proportional to 10,639.38, 15,961.50 and 5,094.12

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Solution

The fourth proportional to 10,639.38, 15,961.50 and 5,094.12 is: 7,642.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.38 : 15,961.50 = 5,094.12 : x
  2. Step 2: Convert to fraction form
    10,639.38/15,961.50 = 5,094.12/x
  3. Step 3: Cross multiply
    10,639.38x = 15,961.50 × 5,094.12
  4. Step 4: Simplify right side
    10,639.38x = 81,309,796.38
  5. Step 5: Solve for x
    x = 81,309,796.38/10,639.38
  6. Step 6: Final answer
    x = 7,642.34

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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.