Home / 8,856.79-13,276.07-3,928.75

Finding the Fourth Proportional to 8,856.79, 13,276.07 and 3,928.75

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Solution

The fourth proportional to 8,856.79, 13,276.07 and 3,928.75 is: 5,889.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.79 : 13,276.07 = 3,928.75 : x
  2. Step 2: Convert to fraction form
    8,856.79/13,276.07 = 3,928.75/x
  3. Step 3: Cross multiply
    8,856.79x = 13,276.07 × 3,928.75
  4. Step 4: Simplify right side
    8,856.79x = 52,158,369.83
  5. Step 5: Solve for x
    x = 52,158,369.83/8,856.79
  6. Step 6: Final answer
    x = 5,889.08

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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.