Home / 8,154.32-12,231.08-2,889.24

Finding the Fourth Proportional to 8,154.32, 12,231.08 and 2,889.24

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Solution

The fourth proportional to 8,154.32, 12,231.08 and 2,889.24 is: 4,333.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,154.32 : 12,231.08 = 2,889.24 : x
  2. Step 2: Convert to fraction form
    8,154.32/12,231.08 = 2,889.24/x
  3. Step 3: Cross multiply
    8,154.32x = 12,231.08 × 2,889.24
  4. Step 4: Simplify right side
    8,154.32x = 35,338,532.80
  5. Step 5: Solve for x
    x = 35,338,532.80/8,154.32
  6. Step 6: Final answer
    x = 4,333.72

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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.