Home / 10,120.32-13,961.70-5,871.06

Finding the Fourth Proportional to 10,120.32, 13,961.70 and 5,871.06

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Solution

The fourth proportional to 10,120.32, 13,961.70 and 5,871.06 is: 8,099.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.32 : 13,961.70 = 5,871.06 : x
  2. Step 2: Convert to fraction form
    10,120.32/13,961.70 = 5,871.06/x
  3. Step 3: Cross multiply
    10,120.32x = 13,961.70 × 5,871.06
  4. Step 4: Simplify right side
    10,120.32x = 81,969,978.40
  5. Step 5: Solve for x
    x = 81,969,978.40/10,120.32
  6. Step 6: Final answer
    x = 8,099.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.