Home / 18,228.58-25,157.76-10,272.76

Finding the Fourth Proportional to 18,228.58, 25,157.76 and 10,272.76

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Solution

The fourth proportional to 18,228.58, 25,157.76 and 10,272.76 is: 14,177.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.58 : 25,157.76 = 10,272.76 : x
  2. Step 2: Convert to fraction form
    18,228.58/25,157.76 = 10,272.76/x
  3. Step 3: Cross multiply
    18,228.58x = 25,157.76 × 10,272.76
  4. Step 4: Simplify right side
    18,228.58x = 258,439,630.62
  5. Step 5: Solve for x
    x = 258,439,630.62/18,228.58
  6. Step 6: Final answer
    x = 14,177.72

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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.