Home / 18,228.75-25,155.34-10,270.80

Finding the Fourth Proportional to 18,228.75, 25,155.34 and 10,270.80

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Solution

The fourth proportional to 18,228.75, 25,155.34 and 10,270.80 is: 14,173.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.75 : 25,155.34 = 10,270.80 : x
  2. Step 2: Convert to fraction form
    18,228.75/25,155.34 = 10,270.80/x
  3. Step 3: Cross multiply
    18,228.75x = 25,155.34 × 10,270.80
  4. Step 4: Simplify right side
    18,228.75x = 258,365,498.17
  5. Step 5: Solve for x
    x = 258,365,498.17/18,228.75
  6. Step 6: Final answer
    x = 14,173.52

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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.