Home / 8,858.30-13,279.35-3,928.91

Finding the Fourth Proportional to 8,858.30, 13,279.35 and 3,928.91

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Solution

The fourth proportional to 8,858.30, 13,279.35 and 3,928.91 is: 5,889.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.30 : 13,279.35 = 3,928.91 : x
  2. Step 2: Convert to fraction form
    8,858.30/13,279.35 = 3,928.91/x
  3. Step 3: Cross multiply
    8,858.30x = 13,279.35 × 3,928.91
  4. Step 4: Simplify right side
    8,858.30x = 52,173,371.01
  5. Step 5: Solve for x
    x = 52,173,371.01/8,858.30
  6. Step 6: Final answer
    x = 5,889.77

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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.