Home / 8,889.36-13,336.92-4,272.72

Finding the Fourth Proportional to 8,889.36, 13,336.92 and 4,272.72

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Solution

The fourth proportional to 8,889.36, 13,336.92 and 4,272.72 is: 6,410.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.36 : 13,336.92 = 4,272.72 : x
  2. Step 2: Convert to fraction form
    8,889.36/13,336.92 = 4,272.72/x
  3. Step 3: Cross multiply
    8,889.36x = 13,336.92 × 4,272.72
  4. Step 4: Simplify right side
    8,889.36x = 56,984,924.82
  5. Step 5: Solve for x
    x = 56,984,924.82/8,889.36
  6. Step 6: Final answer
    x = 6,410.46

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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.