Home / 8,911.16-13,357.91-4,222.88

Finding the Fourth Proportional to 8,911.16, 13,357.91 and 4,222.88

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Solution

The fourth proportional to 8,911.16, 13,357.91 and 4,222.88 is: 6,330.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.16 : 13,357.91 = 4,222.88 : x
  2. Step 2: Convert to fraction form
    8,911.16/13,357.91 = 4,222.88/x
  3. Step 3: Cross multiply
    8,911.16x = 13,357.91 × 4,222.88
  4. Step 4: Simplify right side
    8,911.16x = 56,408,794.75
  5. Step 5: Solve for x
    x = 56,408,794.75/8,911.16
  6. Step 6: Final answer
    x = 6,330.13

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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.