Home / 15,446.37-21,315.41-8,372.64

Finding the Fourth Proportional to 15,446.37, 21,315.41 and 8,372.64

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Solution

The fourth proportional to 15,446.37, 21,315.41 and 8,372.64 is: 11,553.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,446.37 : 21,315.41 = 8,372.64 : x
  2. Step 2: Convert to fraction form
    15,446.37/21,315.41 = 8,372.64/x
  3. Step 3: Cross multiply
    15,446.37x = 21,315.41 × 8,372.64
  4. Step 4: Simplify right side
    15,446.37x = 178,466,222.03
  5. Step 5: Solve for x
    x = 178,466,222.03/15,446.37
  6. Step 6: Final answer
    x = 11,553.93

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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.