Home / 10,143.12-15,216.60-3,216.24

Finding the Fourth Proportional to 10,143.12, 15,216.60 and 3,216.24

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Solution

The fourth proportional to 10,143.12, 15,216.60 and 3,216.24 is: 4,824.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.12 : 15,216.60 = 3,216.24 : x
  2. Step 2: Convert to fraction form
    10,143.12/15,216.60 = 3,216.24/x
  3. Step 3: Cross multiply
    10,143.12x = 15,216.60 × 3,216.24
  4. Step 4: Simplify right side
    10,143.12x = 48,940,237.58
  5. Step 5: Solve for x
    x = 48,940,237.58/10,143.12
  6. Step 6: Final answer
    x = 4,824.97

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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.