Home / 8,865.36-13,299.48-3,320.64

Finding the Fourth Proportional to 8,865.36, 13,299.48 and 3,320.64

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Solution

The fourth proportional to 8,865.36, 13,299.48 and 3,320.64 is: 4,981.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,865.36 : 13,299.48 = 3,320.64 : x
  2. Step 2: Convert to fraction form
    8,865.36/13,299.48 = 3,320.64/x
  3. Step 3: Cross multiply
    8,865.36x = 13,299.48 × 3,320.64
  4. Step 4: Simplify right side
    8,865.36x = 44,162,785.27
  5. Step 5: Solve for x
    x = 44,162,785.27/8,865.36
  6. Step 6: Final answer
    x = 4,981.50

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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.