Home / 18,228.06-25,154.10-11,154.48

Finding the Fourth Proportional to 18,228.06, 25,154.10 and 11,154.48

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Solution

The fourth proportional to 18,228.06, 25,154.10 and 11,154.48 is: 15,392.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.06 : 25,154.10 = 11,154.48 : x
  2. Step 2: Convert to fraction form
    18,228.06/25,154.10 = 11,154.48/x
  3. Step 3: Cross multiply
    18,228.06x = 25,154.10 × 11,154.48
  4. Step 4: Simplify right side
    18,228.06x = 280,580,905.37
  5. Step 5: Solve for x
    x = 280,580,905.37/18,228.06
  6. Step 6: Final answer
    x = 15,392.80

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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.