Home / 14,290.62-21,348.74-11,372.19

Finding the Fourth Proportional to 14,290.62, 21,348.74 and 11,372.19

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Solution

The fourth proportional to 14,290.62, 21,348.74 and 11,372.19 is: 16,988.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,290.62 : 21,348.74 = 11,372.19 : x
  2. Step 2: Convert to fraction form
    14,290.62/21,348.74 = 11,372.19/x
  3. Step 3: Cross multiply
    14,290.62x = 21,348.74 × 11,372.19
  4. Step 4: Simplify right side
    14,290.62x = 242,781,927.54
  5. Step 5: Solve for x
    x = 242,781,927.54/14,290.62
  6. Step 6: Final answer
    x = 16,988.90

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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.