Home / 10,785.06-16,181.46-4,215.96

Finding the Fourth Proportional to 10,785.06, 16,181.46 and 4,215.96

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Solution

The fourth proportional to 10,785.06, 16,181.46 and 4,215.96 is: 6,325.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,785.06 : 16,181.46 = 4,215.96 : x
  2. Step 2: Convert to fraction form
    10,785.06/16,181.46 = 4,215.96/x
  3. Step 3: Cross multiply
    10,785.06x = 16,181.46 × 4,215.96
  4. Step 4: Simplify right side
    10,785.06x = 68,220,388.10
  5. Step 5: Solve for x
    x = 68,220,388.10/10,785.06
  6. Step 6: Final answer
    x = 6,325.45

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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.