Home / 13,845.29-20,661.98-12,367.85

Finding the Fourth Proportional to 13,845.29, 20,661.98 and 12,367.85

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Solution

The fourth proportional to 13,845.29, 20,661.98 and 12,367.85 is: 18,457.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.29 : 20,661.98 = 12,367.85 : x
  2. Step 2: Convert to fraction form
    13,845.29/20,661.98 = 12,367.85/x
  3. Step 3: Cross multiply
    13,845.29x = 20,661.98 × 12,367.85
  4. Step 4: Simplify right side
    13,845.29x = 255,544,104.19
  5. Step 5: Solve for x
    x = 255,544,104.19/13,845.29
  6. Step 6: Final answer
    x = 18,457.12

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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.