Home / 18,225.60-25,150.72-11,152.03

Finding the Fourth Proportional to 18,225.60, 25,150.72 and 11,152.03

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Solution

The fourth proportional to 18,225.60, 25,150.72 and 11,152.03 is: 15,389.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,225.60 : 25,150.72 = 11,152.03 : x
  2. Step 2: Convert to fraction form
    18,225.60/25,150.72 = 11,152.03/x
  3. Step 3: Cross multiply
    18,225.60x = 25,150.72 × 11,152.03
  4. Step 4: Simplify right side
    18,225.60x = 280,481,435.59
  5. Step 5: Solve for x
    x = 280,481,435.59/18,225.60
  6. Step 6: Final answer
    x = 15,389.42

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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.