Home / 13,290.36-18,348.57-11,814.27

Finding the Fourth Proportional to 13,290.36, 18,348.57 and 11,814.27

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Solution

The fourth proportional to 13,290.36, 18,348.57 and 11,814.27 is: 16,310.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290.36 : 18,348.57 = 11,814.27 : x
  2. Step 2: Convert to fraction form
    13,290.36/18,348.57 = 11,814.27/x
  3. Step 3: Cross multiply
    13,290.36x = 18,348.57 × 11,814.27
  4. Step 4: Simplify right side
    13,290.36x = 216,774,960.09
  5. Step 5: Solve for x
    x = 216,774,960.09/13,290.36
  6. Step 6: Final answer
    x = 16,310.69

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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.