Home / 13,446.27-18,557.51-8,728.83

Finding the Fourth Proportional to 13,446.27, 18,557.51 and 8,728.83

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Solution

The fourth proportional to 13,446.27, 18,557.51 and 8,728.83 is: 12,046.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.27 : 18,557.51 = 8,728.83 : x
  2. Step 2: Convert to fraction form
    13,446.27/18,557.51 = 8,728.83/x
  3. Step 3: Cross multiply
    13,446.27x = 18,557.51 × 8,728.83
  4. Step 4: Simplify right side
    13,446.27x = 161,985,306.37
  5. Step 5: Solve for x
    x = 161,985,306.37/13,446.27
  6. Step 6: Final answer
    x = 12,046.86

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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.