Home / 12,195.36-16,821-7,482.24

Finding the Fourth Proportional to 12,195.36, 16,821 and 7,482.24

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Solution

The fourth proportional to 12,195.36, 16,821 and 7,482.24 is: 10,320.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.36 : 16,821 = 7,482.24 : x
  2. Step 2: Convert to fraction form
    12,195.36/16,821 = 7,482.24/x
  3. Step 3: Cross multiply
    12,195.36x = 16,821 × 7,482.24
  4. Step 4: Simplify right side
    12,195.36x = 125,858,759.04
  5. Step 5: Solve for x
    x = 125,858,759.04/12,195.36
  6. Step 6: Final answer
    x = 10,320.22

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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.