Home / 15,900.24-21,942.28-8,826.96

Finding the Fourth Proportional to 15,900.24, 21,942.28 and 8,826.96

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Solution

The fourth proportional to 15,900.24, 21,942.28 and 8,826.96 is: 12,181.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,900.24 : 21,942.28 = 8,826.96 : x
  2. Step 2: Convert to fraction form
    15,900.24/21,942.28 = 8,826.96/x
  3. Step 3: Cross multiply
    15,900.24x = 21,942.28 × 8,826.96
  4. Step 4: Simplify right side
    15,900.24x = 193,683,627.87
  5. Step 5: Solve for x
    x = 193,683,627.87/15,900.24
  6. Step 6: Final answer
    x = 12,181.18

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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.