Home / 8,428.98-11,632.63-4,892.72

Finding the Fourth Proportional to 8,428.98, 11,632.63 and 4,892.72

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Solution

The fourth proportional to 8,428.98, 11,632.63 and 4,892.72 is: 6,752.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428.98 : 11,632.63 = 4,892.72 : x
  2. Step 2: Convert to fraction form
    8,428.98/11,632.63 = 4,892.72/x
  3. Step 3: Cross multiply
    8,428.98x = 11,632.63 × 4,892.72
  4. Step 4: Simplify right side
    8,428.98x = 56,915,218.30
  5. Step 5: Solve for x
    x = 56,915,218.30/8,428.98
  6. Step 6: Final answer
    x = 6,752.33

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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.