Home / 8,428.27-11,631-4,892.17

Finding the Fourth Proportional to 8,428.27, 11,631 and 4,892.17

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Solution

The fourth proportional to 8,428.27, 11,631 and 4,892.17 is: 6,751.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428.27 : 11,631 = 4,892.17 : x
  2. Step 2: Convert to fraction form
    8,428.27/11,631 = 4,892.17/x
  3. Step 3: Cross multiply
    8,428.27x = 11,631 × 4,892.17
  4. Step 4: Simplify right side
    8,428.27x = 56,900,829.27
  5. Step 5: Solve for x
    x = 56,900,829.27/8,428.27
  6. Step 6: Final answer
    x = 6,751.19

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1.5x scale

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.