Home / 8,428.96-11,631.90-4,892.50

Finding the Fourth Proportional to 8,428.96, 11,631.90 and 4,892.50

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Solution

The fourth proportional to 8,428.96, 11,631.90 and 4,892.50 is: 6,751.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428.96 : 11,631.90 = 4,892.50 : x
  2. Step 2: Convert to fraction form
    8,428.96/11,631.90 = 4,892.50/x
  3. Step 3: Cross multiply
    8,428.96x = 11,631.90 × 4,892.50
  4. Step 4: Simplify right side
    8,428.96x = 56,909,070.75
  5. Step 5: Solve for x
    x = 56,909,070.75/8,428.96
  6. Step 6: Final answer
    x = 6,751.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.