Home / 13,354.73-18,429.48-7,687.41

Finding the Fourth Proportional to 13,354.73, 18,429.48 and 7,687.41

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Solution

The fourth proportional to 13,354.73, 18,429.48 and 7,687.41 is: 10,608.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,354.73 : 18,429.48 = 7,687.41 : x
  2. Step 2: Convert to fraction form
    13,354.73/18,429.48 = 7,687.41/x
  3. Step 3: Cross multiply
    13,354.73x = 18,429.48 × 7,687.41
  4. Step 4: Simplify right side
    13,354.73x = 141,674,968.85
  5. Step 5: Solve for x
    x = 141,674,968.85/13,354.73
  6. Step 6: Final answer
    x = 10,608.60

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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.