Home / 14,382.50-21,472.87-12,168.77

Finding the Fourth Proportional to 14,382.50, 21,472.87 and 12,168.77

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Solution

The fourth proportional to 14,382.50, 21,472.87 and 12,168.77 is: 18,167.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,382.50 : 21,472.87 = 12,168.77 : x
  2. Step 2: Convert to fraction form
    14,382.50/21,472.87 = 12,168.77/x
  3. Step 3: Cross multiply
    14,382.50x = 21,472.87 × 12,168.77
  4. Step 4: Simplify right side
    14,382.50x = 261,298,416.27
  5. Step 5: Solve for x
    x = 261,298,416.27/14,382.50
  6. Step 6: Final answer
    x = 18,167.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.