Home / 8,910.28-13,356.60-4,222

Finding the Fourth Proportional to 8,910.28, 13,356.60 and 4,222

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Solution

The fourth proportional to 8,910.28, 13,356.60 and 4,222 is: 6,328.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910.28 : 13,356.60 = 4,222 : x
  2. Step 2: Convert to fraction form
    8,910.28/13,356.60 = 4,222/x
  3. Step 3: Cross multiply
    8,910.28x = 13,356.60 × 4,222
  4. Step 4: Simplify right side
    8,910.28x = 56,391,565.20
  5. Step 5: Solve for x
    x = 56,391,565.20/8,910.28
  6. Step 6: Final answer
    x = 6,328.82

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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.