Home / 14,214.40-21,345.90-9,305.80

Finding the Fourth Proportional to 14,214.40, 21,345.90 and 9,305.80

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Solution

The fourth proportional to 14,214.40, 21,345.90 and 9,305.80 is: 13,974.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,214.40 : 21,345.90 = 9,305.80 : x
  2. Step 2: Convert to fraction form
    14,214.40/21,345.90 = 9,305.80/x
  3. Step 3: Cross multiply
    14,214.40x = 21,345.90 × 9,305.80
  4. Step 4: Simplify right side
    14,214.40x = 198,640,676.22
  5. Step 5: Solve for x
    x = 198,640,676.22/14,214.40
  6. Step 6: Final answer
    x = 13,974.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.