Home / 8,065.32-11,129.88-4,528.44

Finding the Fourth Proportional to 8,065.32, 11,129.88 and 4,528.44

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Solution

The fourth proportional to 8,065.32, 11,129.88 and 4,528.44 is: 6,249.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065.32 : 11,129.88 = 4,528.44 : x
  2. Step 2: Convert to fraction form
    8,065.32/11,129.88 = 4,528.44/x
  3. Step 3: Cross multiply
    8,065.32x = 11,129.88 × 4,528.44
  4. Step 4: Simplify right side
    8,065.32x = 50,400,993.79
  5. Step 5: Solve for x
    x = 50,400,993.79/8,065.32
  6. Step 6: Final answer
    x = 6,249.10

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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.