Home / 8,905.19-13,352.32-4,218.86

Finding the Fourth Proportional to 8,905.19, 13,352.32 and 4,218.86

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Solution

The fourth proportional to 8,905.19, 13,352.32 and 4,218.86 is: 6,325.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.19 : 13,352.32 = 4,218.86 : x
  2. Step 2: Convert to fraction form
    8,905.19/13,352.32 = 4,218.86/x
  3. Step 3: Cross multiply
    8,905.19x = 13,352.32 × 4,218.86
  4. Step 4: Simplify right side
    8,905.19x = 56,331,557.99
  5. Step 5: Solve for x
    x = 56,331,557.99/8,905.19
  6. Step 6: Final answer
    x = 6,325.70

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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.