Home / 11,279.28-15,559.24-6,800.32

Finding the Fourth Proportional to 11,279.28, 15,559.24 and 6,800.32

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Solution

The fourth proportional to 11,279.28, 15,559.24 and 6,800.32 is: 9,380.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.28 : 15,559.24 = 6,800.32 : x
  2. Step 2: Convert to fraction form
    11,279.28/15,559.24 = 6,800.32/x
  3. Step 3: Cross multiply
    11,279.28x = 15,559.24 × 6,800.32
  4. Step 4: Simplify right side
    11,279.28x = 105,807,810.96
  5. Step 5: Solve for x
    x = 105,807,810.96/11,279.28
  6. Step 6: Final answer
    x = 9,380.72

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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.