Home / 18,555.22-25,606.17-10,171.78

Finding the Fourth Proportional to 18,555.22, 25,606.17 and 10,171.78

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Solution

The fourth proportional to 18,555.22, 25,606.17 and 10,171.78 is: 14,037.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,555.22 : 25,606.17 = 10,171.78 : x
  2. Step 2: Convert to fraction form
    18,555.22/25,606.17 = 10,171.78/x
  3. Step 3: Cross multiply
    18,555.22x = 25,606.17 × 10,171.78
  4. Step 4: Simplify right side
    18,555.22x = 260,460,327.88
  5. Step 5: Solve for x
    x = 260,460,327.88/18,555.22
  6. Step 6: Final answer
    x = 14,037.04

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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.