Home / 8,457.31-11,672-4,922.47

Finding the Fourth Proportional to 8,457.31, 11,672 and 4,922.47

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Solution

The fourth proportional to 8,457.31, 11,672 and 4,922.47 is: 6,793.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,457.31 : 11,672 = 4,922.47 : x
  2. Step 2: Convert to fraction form
    8,457.31/11,672 = 4,922.47/x
  3. Step 3: Cross multiply
    8,457.31x = 11,672 × 4,922.47
  4. Step 4: Simplify right side
    8,457.31x = 57,455,069.84
  5. Step 5: Solve for x
    x = 57,455,069.84/8,457.31
  6. Step 6: Final answer
    x = 6,793.54

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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.