Home / 8,826.40-13,235.32-5,129.70

Finding the Fourth Proportional to 8,826.40, 13,235.32 and 5,129.70

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Solution

The fourth proportional to 8,826.40, 13,235.32 and 5,129.70 is: 7,692.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,826.40 : 13,235.32 = 5,129.70 : x
  2. Step 2: Convert to fraction form
    8,826.40/13,235.32 = 5,129.70/x
  3. Step 3: Cross multiply
    8,826.40x = 13,235.32 × 5,129.70
  4. Step 4: Simplify right side
    8,826.40x = 67,893,221.00
  5. Step 5: Solve for x
    x = 67,893,221.00/8,826.40
  6. Step 6: Final answer
    x = 7,692.06

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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.