Home / 8,857.76-13,288.08-2,618.39

Finding the Fourth Proportional to 8,857.76, 13,288.08 and 2,618.39

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Solution

The fourth proportional to 8,857.76, 13,288.08 and 2,618.39 is: 3,928.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,857.76 : 13,288.08 = 2,618.39 : x
  2. Step 2: Convert to fraction form
    8,857.76/13,288.08 = 2,618.39/x
  3. Step 3: Cross multiply
    8,857.76x = 13,288.08 × 2,618.39
  4. Step 4: Simplify right side
    8,857.76x = 34,793,309.35
  5. Step 5: Solve for x
    x = 34,793,309.35/8,857.76
  6. Step 6: Final answer
    x = 3,928.01

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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.