Home / 13,105.28-19,660.88-4,785.33

Finding the Fourth Proportional to 13,105.28, 19,660.88 and 4,785.33

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Solution

The fourth proportional to 13,105.28, 19,660.88 and 4,785.33 is: 7,179.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,105.28 : 19,660.88 = 4,785.33 : x
  2. Step 2: Convert to fraction form
    13,105.28/19,660.88 = 4,785.33/x
  3. Step 3: Cross multiply
    13,105.28x = 19,660.88 × 4,785.33
  4. Step 4: Simplify right side
    13,105.28x = 94,083,774.96
  5. Step 5: Solve for x
    x = 94,083,774.96/13,105.28
  6. Step 6: Final answer
    x = 7,179.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.