Home / 8,428.56-11,634.26-4,892.91

Finding the Fourth Proportional to 8,428.56, 11,634.26 and 4,892.91

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Solution

The fourth proportional to 8,428.56, 11,634.26 and 4,892.91 is: 6,753.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428.56 : 11,634.26 = 4,892.91 : x
  2. Step 2: Convert to fraction form
    8,428.56/11,634.26 = 4,892.91/x
  3. Step 3: Cross multiply
    8,428.56x = 11,634.26 × 4,892.91
  4. Step 4: Simplify right side
    8,428.56x = 56,925,387.10
  5. Step 5: Solve for x
    x = 56,925,387.10/8,428.56
  6. Step 6: Final answer
    x = 6,753.87

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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.