Home / 8,705.36-13,050.12-3,156.32

Finding the Fourth Proportional to 8,705.36, 13,050.12 and 3,156.32

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Solution

The fourth proportional to 8,705.36, 13,050.12 and 3,156.32 is: 4,731.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.36 : 13,050.12 = 3,156.32 : x
  2. Step 2: Convert to fraction form
    8,705.36/13,050.12 = 3,156.32/x
  3. Step 3: Cross multiply
    8,705.36x = 13,050.12 × 3,156.32
  4. Step 4: Simplify right side
    8,705.36x = 41,190,354.76
  5. Step 5: Solve for x
    x = 41,190,354.76/8,705.36
  6. Step 6: Final answer
    x = 4,731.61

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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.