Home / 18,785.04-25,921.56-11,229.87

Finding the Fourth Proportional to 18,785.04, 25,921.56 and 11,229.87

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Solution

The fourth proportional to 18,785.04, 25,921.56 and 11,229.87 is: 15,496.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,785.04 : 25,921.56 = 11,229.87 : x
  2. Step 2: Convert to fraction form
    18,785.04/25,921.56 = 11,229.87/x
  3. Step 3: Cross multiply
    18,785.04x = 25,921.56 × 11,229.87
  4. Step 4: Simplify right side
    18,785.04x = 291,095,749.00
  5. Step 5: Solve for x
    x = 291,095,749.00/18,785.04
  6. Step 6: Final answer
    x = 15,496.15

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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.