Home / 14,128.13-21,195.73-9,976.26

Finding the Fourth Proportional to 14,128.13, 21,195.73 and 9,976.26

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Solution

The fourth proportional to 14,128.13, 21,195.73 and 9,976.26 is: 14,966.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,128.13 : 21,195.73 = 9,976.26 : x
  2. Step 2: Convert to fraction form
    14,128.13/21,195.73 = 9,976.26/x
  3. Step 3: Cross multiply
    14,128.13x = 21,195.73 × 9,976.26
  4. Step 4: Simplify right side
    14,128.13x = 211,454,205.32
  5. Step 5: Solve for x
    x = 211,454,205.32/14,128.13
  6. Step 6: Final answer
    x = 14,966.89

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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.