Home / 14,179.07-21,272.25-5,409.20

Finding the Fourth Proportional to 14,179.07, 21,272.25 and 5,409.20

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Solution

The fourth proportional to 14,179.07, 21,272.25 and 5,409.20 is: 8,115.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,179.07 : 21,272.25 = 5,409.20 : x
  2. Step 2: Convert to fraction form
    14,179.07/21,272.25 = 5,409.20/x
  3. Step 3: Cross multiply
    14,179.07x = 21,272.25 × 5,409.20
  4. Step 4: Simplify right side
    14,179.07x = 115,065,854.70
  5. Step 5: Solve for x
    x = 115,065,854.70/14,179.07
  6. Step 6: Final answer
    x = 8,115.19

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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.