Home / 8,905.86-13,351.68-4,223.52

Finding the Fourth Proportional to 8,905.86, 13,351.68 and 4,223.52

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Solution

The fourth proportional to 8,905.86, 13,351.68 and 4,223.52 is: 6,331.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.86 : 13,351.68 = 4,223.52 : x
  2. Step 2: Convert to fraction form
    8,905.86/13,351.68 = 4,223.52/x
  3. Step 3: Cross multiply
    8,905.86x = 13,351.68 × 4,223.52
  4. Step 4: Simplify right side
    8,905.86x = 56,391,087.51
  5. Step 5: Solve for x
    x = 56,391,087.51/8,905.86
  6. Step 6: Final answer
    x = 6,331.91

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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.