Home / 8,129.06-11,200.28-5,471.85

Finding the Fourth Proportional to 8,129.06, 11,200.28 and 5,471.85

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Solution

The fourth proportional to 8,129.06, 11,200.28 and 5,471.85 is: 7,539.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.06 : 11,200.28 = 5,471.85 : x
  2. Step 2: Convert to fraction form
    8,129.06/11,200.28 = 5,471.85/x
  3. Step 3: Cross multiply
    8,129.06x = 11,200.28 × 5,471.85
  4. Step 4: Simplify right side
    8,129.06x = 61,286,266.76
  5. Step 5: Solve for x
    x = 61,286,266.76/8,129.06
  6. Step 6: Final answer
    x = 7,539.16

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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.