Home / 18,295.36-25,247.56-9,911.88

Finding the Fourth Proportional to 18,295.36, 25,247.56 and 9,911.88

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Solution

The fourth proportional to 18,295.36, 25,247.56 and 9,911.88 is: 13,678.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,295.36 : 25,247.56 = 9,911.88 : x
  2. Step 2: Convert to fraction form
    18,295.36/25,247.56 = 9,911.88/x
  3. Step 3: Cross multiply
    18,295.36x = 25,247.56 × 9,911.88
  4. Step 4: Simplify right side
    18,295.36x = 250,250,785.01
  5. Step 5: Solve for x
    x = 250,250,785.01/18,295.36
  6. Step 6: Final answer
    x = 13,678.37

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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.