Home / 9,123.89-13,687.23-3,858.91

Finding the Fourth Proportional to 9,123.89, 13,687.23 and 3,858.91

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Solution

The fourth proportional to 9,123.89, 13,687.23 and 3,858.91 is: 5,788.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,123.89 : 13,687.23 = 3,858.91 : x
  2. Step 2: Convert to fraction form
    9,123.89/13,687.23 = 3,858.91/x
  3. Step 3: Cross multiply
    9,123.89x = 13,687.23 × 3,858.91
  4. Step 4: Simplify right side
    9,123.89x = 52,817,768.97
  5. Step 5: Solve for x
    x = 52,817,768.97/9,123.89
  6. Step 6: Final answer
    x = 5,788.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.